80477040 has 80 divisors (see below), whose sum is σ = 285124608. Its totient is φ = 18394368.

The previous prime is 80477039. The next prime is 80477053. The reversal of 80477040 is 4077408.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 80476989 and 80477007.

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, 22272 + ... + 25631.

Almost surely, 2^80477040 is an apocalyptic number.

80477040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80477040 is an abundant number, since it is smaller than the sum of its proper divisors (204647568).

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

80477040 is a wasteful number, since it uses less digits than its factorization.

80477040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47926 (or 47920 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 80477040 is about 8970.8996204394. The cubic root of 80477040 is about 431.7417008712.

The spelling of 80477040 in words is "eighty million, four hundred seventy-seven thousand, forty".