80406012 has 12 divisors (see below), whose sum is σ = 187614056. Its totient is φ = 26802000.

The previous prime is 80405993. The next prime is 80406013. The reversal of 80406012 is 21060408.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 80406012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80406013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350239 + ... + 3350262.

Almost surely, 2^80406012 is an apocalyptic number.

It is an amenable number.

80406012 is an abundant number, since it is smaller than the sum of its proper divisors (107208044).

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

80406012 is a wasteful number, since it uses less digits than its factorization.

80406012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700508 (or 6700506 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 80406012 is about 8966.9399462693. The cubic root of 80406012 is about 431.6146469284.

The spelling of 80406012 in words is "eighty million, four hundred six thousand, twelve".