80462640 has 40 divisors (see below), whose sum is σ = 249434928. Its totient is φ = 21456640.

The previous prime is 80462633. The next prime is 80462651. The reversal of 80462640 is 4626408.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 80462598 and 80462607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167391 + ... + 167870.

Almost surely, 2^80462640 is an apocalyptic number.

80462640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80462640 is an abundant number, since it is smaller than the sum of its proper divisors (168972288).

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

80462640 is a wasteful number, since it uses less digits than its factorization.

80462640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335277 (or 335271 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 80462640 is about 8970.0969894422. The cubic root of 80462640 is about 431.7159483860.

The spelling of 80462640 in words is "eighty million, four hundred sixty-two thousand, six hundred forty".