40156058 has 4 divisors (see below), whose sum is σ = 60234090. Its totient is φ = 20078028.

The previous prime is 40156021. The next prime is 40156069. The reversal of 40156058 is 85065104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39150049 + 1006009 = 6257^2 + 1003^2 .

It is a super-2 number, since 2×40156058² = 3225017988198728, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40156058.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10039013 + ... + 10039016.

Almost surely, 2^40156058 is an apocalyptic number.

40156058 is a deficient number, since it is larger than the sum of its proper divisors (20078032).

40156058 is a wasteful number, since it uses less digits than its factorization.

40156058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20078031.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 40156058 is about 6336.8807784272. The cubic root of 40156058 is about 342.4393712278.

The spelling of 40156058 in words is "forty million, one hundred fifty-six thousand, fifty-eight".