20156802 has 16 divisors (see below), whose sum is σ = 40377792. Its totient is φ = 6708240.

The previous prime is 20156797. The next prime is 20156821. The reversal of 20156802 is 20865102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2052 + ... + 6672.

It is an arithmetic number, because the mean of its divisors is an integer number (2523612).

Almost surely, 2^20156802 is an apocalyptic number.

20156802 is an abundant number, since it is smaller than the sum of its proper divisors (20220990).

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

20156802 is a wasteful number, since it uses less digits than its factorization.

20156802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20156802 is about 4489.6327243996. The cubic root of 20156802 is about 272.1492926823.

The spelling of 20156802 in words is "twenty million, one hundred fifty-six thousand, eight hundred two".