80629402 has 24 divisors (see below), whose sum is σ = 148969044. Its totient is φ = 32522112.

The previous prime is 80629399. The next prime is 80629433. The reversal of 80629402 is 20492608.

It can be written as a sum of positive squares in 2 ways, for example, as 73290721 + 7338681 = 8561^2 + 2709^2 .

It is a super-2 number, since 2×80629402² = 13002200933755208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22533 + ... + 25864.

Almost surely, 2^80629402 is an apocalyptic number.

80629402 is a deficient number, since it is larger than the sum of its proper divisors (68339642).

80629402 is a wasteful number, since it uses less digits than its factorization.

80629402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48430 (or 48423 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 80629402 is about 8979.3876183179. The cubic root of 80629402 is about 432.0139920308.

The spelling of 80629402 in words is "eighty million, six hundred twenty-nine thousand, four hundred two".