80212405 has 32 divisors (see below), whose sum is σ = 122572800. Its totient is φ = 49012992.

The previous prime is 80212397. The next prime is 80212417. The reversal of 80212405 is 50421208.

It is not a de Polignac number, because 80212405 - 2³ = 80212397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10156 + ... + 16234.

It is an arithmetic number, because the mean of its divisors is an integer number (3830400).

Almost surely, 2^80212405 is an apocalyptic number.

It is an amenable number.

80212405 is a deficient number, since it is larger than the sum of its proper divisors (42360395).

80212405 is a wasteful number, since it uses less digits than its factorization.

80212405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6133.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 80212405 is about 8956.1378394931. The cubic root of 80212405 is about 431.2679449230.

The spelling of 80212405 in words is "eighty million, two hundred twelve thousand, four hundred five".