20156058 has 24 divisors (see below), whose sum is σ = 47031348. Its totient is φ = 6201792.

The previous prime is 20156029. The next prime is 20156063. The reversal of 20156058 is 85065102.

It can be written as a sum of positive squares in 2 ways, for example, as 14265729 + 5890329 = 3777^2 + 2427^2 .

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, 42835 + ... + 43302.

Almost surely, 2^20156058 is an apocalyptic number.

20156058 is an abundant number, since it is smaller than the sum of its proper divisors (26875290).

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

20156058 is a wasteful number, since it uses less digits than its factorization.

20156058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86158 (or 86155 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 20156058 is about 4489.5498660779. The cubic root of 20156058 is about 272.1459442416.

The spelling of 20156058 in words is "twenty million, one hundred fifty-six thousand, fifty-eight".