1040263720 has 32 divisors (see below), whose sum is σ = 2342124000. Its totient is φ = 415833408.

The previous prime is 1040263709. The next prime is 1040263739. The reversal of 1040263720 is 273620401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60307 + ... + 75613.

It is an arithmetic number, because the mean of its divisors is an integer number (73191375).

Almost surely, 2^1040263720 is an apocalyptic number.

1040263720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040263720 is an abundant number, since it is smaller than the sum of its proper divisors (1301860280).

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

1040263720 is a wasteful number, since it uses less digits than its factorization.

1040263720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17017 (or 17013 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1040263720 is about 32253.1195390461. The cubic root of 1040263720 is about 1013.2450345307.

The spelling of 1040263720 in words is "one billion, forty million, two hundred sixty-three thousand, seven hundred twenty".