20156026 has 8 divisors (see below), whose sum is σ = 32982624. Its totient is φ = 9161820.

The previous prime is 20156023. The next prime is 20156029. The reversal of 20156026 is 62065102.

It is an interprime number because it is at equal distance from previous prime (20156023) and next prime (20156029).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20156026² = 812530768225352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 916183 = 20156026 / (2 + 0 + 1 + 5 + 6 + 0 + 2 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 20155988 and 20156006.

It is not an unprimeable number, because it can be changed into a prime (20156021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458070 + ... + 458113.

It is an arithmetic number, because the mean of its divisors is an integer number (4122828).

Almost surely, 2^20156026 is an apocalyptic number.

20156026 is a deficient number, since it is larger than the sum of its proper divisors (12826598).

20156026 is a wasteful number, since it uses less digits than its factorization.

20156026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916196.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 20156026 is about 4489.5463022448. The cubic root of 20156026 is about 272.1458002208.

The spelling of 20156026 in words is "twenty million, one hundred fifty-six thousand, twenty-six".