20074736 has 40 divisors (see below), whose sum is σ = 42747264. Its totient is φ = 9056960.

The previous prime is 20074727. The next prime is 20074759. The reversal of 20074736 is 63747002.

It is a junction number, because it is equal to n+sod(n) for n = 20074699 and 20074708.

It is a congruent number.

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, 29051 + ... + 29733.

Almost surely, 2^20074736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20074736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21373632).

20074736 is an abundant number, since it is smaller than the sum of its proper divisors (22672528).

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

20074736 is a wasteful number, since it uses less digits than its factorization.

20074736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 20074736 is about 4480.4839024373. The cubic root of 20074736 is about 271.7794492428.

The spelling of 20074736 in words is "twenty million, seventy-four thousand, seven hundred thirty-six".