1040433320 has 64 divisors (see below), whose sum is σ = 2503386000. Its totient is φ = 387788800.

The previous prime is 1040433311. The next prime is 1040433323. The reversal of 1040433320 is 233340401.

It can be written as a sum of positive squares in 8 ways, for example, as 942858436 + 97574884 = 30706^2 + 9878^2 .

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 = 1040433292 and 1040433301.

It is not an unprimeable number, because it can be changed into a prime (1040433323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61106 + ... + 76254.

Almost surely, 2^1040433320 is an apocalyptic number.

1040433320 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 1040433320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251693000).

1040433320 is an abundant number, since it is smaller than the sum of its proper divisors (1462952680).

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

1040433320 is a wasteful number, since it uses less digits than its factorization.

1040433320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15278 (or 15274 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1040433320 is about 32255.7486349333. The cubic root of 1040433320 is about 1013.3000965361.

Adding to 1040433320 its reverse (233340401), we get a palindrome (1273773721).

The spelling of 1040433320 in words is "one billion, forty million, four hundred thirty-three thousand, three hundred twenty".