40284012 has 12 divisors (see below), whose sum is σ = 93996056. Its totient is φ = 13428000.

The previous prime is 40283993. The next prime is 40284053. The reversal of 40284012 is 21048204.

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

It is a super-2 number, since 2×40284012² = 3245603245632288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40284012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1678489 + ... + 1678512.

Almost surely, 2^40284012 is an apocalyptic number.

It is an amenable number.

40284012 is an abundant number, since it is smaller than the sum of its proper divisors (53712044).

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

40284012 is a wasteful number, since it uses less digits than its factorization.

40284012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357008 (or 3357006 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 40284012 is about 6346.9687253050. The cubic root of 40284012 is about 342.8027039558.

The spelling of 40284012 in words is "forty million, two hundred eighty-four thousand, twelve".