1040042430 has 224 divisors, whose sum is σ = 3258014400. Its totient is φ = 234026496.

The previous prime is 1040042417. The next prime is 1040042477. The reversal of 1040042430 is 342400401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 4541556 + ... + 4541784.

Almost surely, 2^1040042430 is an apocalyptic number.

1040042430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040042430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629007200).

1040042430 is an abundant number, since it is smaller than the sum of its proper divisors (2217971970).

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

1040042430 is an equidigital number, since it uses as much as digits as its factorization.

1040042430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1040042430 is about 32249.6888357082. The cubic root of 1040042430 is about 1013.1731819512.

Adding to 1040042430 its reverse (342400401), we get a palindrome (1382442831).

The spelling of 1040042430 in words is "one billion, forty million, forty-two thousand, four hundred thirty".