1040432420 has 48 divisors (see below), whose sum is σ = 2308400640. Its totient is φ = 393262464.

The previous prime is 1040432413. The next prime is 1040432443. The reversal of 1040432420 is 242340401.

1040432420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1040432392 and 1040432401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8177 + ... + 46343.

It is an arithmetic number, because the mean of its divisors is an integer number (48091680).

Almost surely, 2^1040432420 is an apocalyptic number.

1040432420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040432420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1154200320).

1040432420 is an abundant number, since it is smaller than the sum of its proper divisors (1267968220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1040432420 is a wasteful number, since it uses less digits than its factorization.

1040432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38252 (or 38250 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1040432420 is about 32255.7346839287. The cubic root of 1040432420 is about 1013.2998043596.

Adding to 1040432420 its reverse (242340401), we get a palindrome (1282772821).

It can be divided in two parts, 10404 and 32420, that added together give a palindrome (42824).

The spelling of 1040432420 in words is "one billion, forty million, four hundred thirty-two thousand, four hundred twenty".