40021412004 has 72 divisors (see below), whose sum is σ = 116762213568. Its totient is φ = 11321467200.

The previous prime is 40021411999. The next prime is 40021412009.

40021412004 is a `hidden beast` number, since 400 + 21 + 41 + 200 + 4 = 666.

40021412004 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (40021411999) and next prime (40021412009).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40021412009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 760762 + ... + 811665.

Almost surely, 2^40021412004 is an apocalyptic number.

It is an amenable number.

40021412004 is an abundant number, since it is smaller than the sum of its proper divisors (76740801564).

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

40021412004 is a wasteful number, since it uses less digits than its factorization.

40021412004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572545 (or 1572540 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The spelling of 40021412004 in words is "forty billion, twenty-one million, four hundred twelve thousand, four".