20074156 has 6 divisors (see below), whose sum is σ = 35129780. Its totient is φ = 10037076.

The previous prime is 20074151. The next prime is 20074169. The reversal of 20074156 is 65147002.

It is a super-2 number, since 2×20074156² = 805943478224672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20074156.

It is not an unprimeable number, because it can be changed into a prime (20074151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2509266 + ... + 2509273.

Almost surely, 2^20074156 is an apocalyptic number.

It is an amenable number.

20074156 is a deficient number, since it is larger than the sum of its proper divisors (15055624).

20074156 is a wasteful number, since it uses less digits than its factorization.

20074156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018543 (or 5018541 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20074156 is about 4480.4191768182. The cubic root of 20074156 is about 271.7768317970.

The spelling of 20074156 in words is "twenty million, seventy-four thousand, one hundred fifty-six".