20774033424 has 45 divisors (see below), whose sum is σ = 58143281599. Its totient is φ = 6924101280.

The previous prime is 20774033393. The next prime is 20774033453. The reversal of 20774033424 is 42433047702.

The square root of 20774033424 is 144132.

It is a perfect power (a square), and thus also a powerful number.

20774033424 is a `hidden beast` number, since 207 + 7 + 403 + 3 + 42 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1723579 + ... + 1735589.

Almost surely, 2^20774033424 is an apocalyptic number.

20774033424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

20774033424 is the 144132-nd square number.

It is an amenable number.

20774033424 is an abundant number, since it is smaller than the sum of its proper divisors (37369248175).

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

20774033424 is an frugal number, since it uses more digits than its factorization.

20774033424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036 (or 12016 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

Multiplying 20774033424 by its sum of digits (36), we get a square (747865203264 = 864792²).

20774033424 divided by its sum of digits (36) gives a square (577056484 = 24022²).

The spelling of 20774033424 in words is "twenty billion, seven hundred seventy-four million, thirty-three thousand, four hundred twenty-four".