1040521320 has 96 divisors (see below), whose sum is σ = 3559701600. Its totient is φ = 262866816.

The previous prime is 1040521319. The next prime is 1040521331. The reversal of 1040521320 is 231250401.

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

It is a junction number, because it is equal to n+sod(n) for n = 1040521293 and 1040521302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69222 + ... + 82901.

It is an arithmetic number, because the mean of its divisors is an integer number (37080225).

Almost surely, 2^1040521320 is an apocalyptic number.

1040521320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040521320 is an abundant number, since it is smaller than the sum of its proper divisors (2519180280).

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

1040521320 is a wasteful number, since it uses less digits than its factorization.

1040521320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152159 (or 152152 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1040521320 is about 32257.1127040223. The cubic root of 1040521320 is about 1013.3286640867.

Adding to 1040521320 its reverse (231250401), we get a palindrome (1271771721).

The spelling of 1040521320 in words is "one billion, forty million, five hundred twenty-one thousand, three hundred twenty".