80440475 has 6 divisors (see below), whose sum is σ = 99746220. Its totient is φ = 64352360.

The previous prime is 80440457. The next prime is 80440489. The reversal of 80440475 is 57404408.

It is a de Polignac number, because none of the positive numbers 2^k-80440475 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1608785 + ... + 1608834.

It is an arithmetic number, because the mean of its divisors is an integer number (16624370).

Almost surely, 2^80440475 is an apocalyptic number.

80440475 is a deficient number, since it is larger than the sum of its proper divisors (19305745).

80440475 is a wasteful number, since it uses less digits than its factorization.

80440475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217629 (or 3217624 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 80440475 is about 8968.8614104579. The cubic root of 80440475 is about 431.6763032257.

The spelling of 80440475 in words is "eighty million, four hundred forty thousand, four hundred seventy-five".