20282156 has 24 divisors (see below), whose sum is σ = 37721376. Its totient is φ = 9509120.

The previous prime is 20282147. The next prime is 20282189. The reversal of 20282156 is 65128202.

It is a super-2 number, since 2×20282156² = 822731704016672, which contains 22 as substring.

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, 31025 + ... + 31671.

It is an arithmetic number, because the mean of its divisors is an integer number (1571724).

Almost surely, 2^20282156 is an apocalyptic number.

It is an amenable number.

20282156 is a deficient number, since it is larger than the sum of its proper divisors (17439220).

20282156 is a wasteful number, since it uses less digits than its factorization.

20282156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20282156 is about 4503.5714716212. The cubic root of 20282156 is about 272.7122875133.

It can be divided in two parts, 20 and 282156, that multiplied together give a triangular number (5643120 = T₃₃₅₉).

The spelling of 20282156 in words is "twenty million, two hundred eighty-two thousand, one hundred fifty-six".