40030056 has 48 divisors (see below), whose sum is σ = 118272960. Its totient is φ = 12130080.

The previous prime is 40030043. The next prime is 40030069. The reversal of 40030056 is 65003004.

It is a happy number.

40030056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40030043) and next prime (40030069).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24480 + ... + 26063.

It is an arithmetic number, because the mean of its divisors is an integer number (2464020).

Almost surely, 2^40030056 is an apocalyptic number.

It is an amenable number.

40030056 is an abundant number, since it is smaller than the sum of its proper divisors (78242904).

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

40030056 is a wasteful number, since it uses less digits than its factorization.

40030056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50566 (or 50559 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 40030056 is about 6326.9310095812. The cubic root of 40030056 is about 342.0808262848.

The spelling of 40030056 in words is "forty million, thirty thousand, fifty-six", and thus it is an eban number.