1047652638 has 32 divisors (see below), whose sum is σ = 2131114752. Its totient is φ = 343281600.

The previous prime is 1047652621. The next prime is 1047652651. The reversal of 1047652638 is 8362567401.

It is a self number, because there is not a number n which added to its sum of digits gives 1047652638.

It is a congruent number.

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, 132373 + ... + 140063.

It is an arithmetic number, because the mean of its divisors is an integer number (66597336).

Almost surely, 2^1047652638 is an apocalyptic number.

1047652638 is an abundant number, since it is smaller than the sum of its proper divisors (1083462114).

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

1047652638 is a wasteful number, since it uses less digits than its factorization.

1047652638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 1047652638 is about 32367.4626438342. The cubic root of 1047652638 is about 1015.6383789360.

The spelling of 1047652638 in words is "one billion, forty-seven million, six hundred fifty-two thousand, six hundred thirty-eight".