20772674 has 16 divisors (see below), whose sum is σ = 35530488. Its totient is φ = 9023232.

The previous prime is 20772667. The next prime is 20772707. The reversal of 20772674 is 47627702.

It can be written as a sum of positive squares in 4 ways, for example, as 16752649 + 4020025 = 4093^2 + 2005^2 .

It is a super-2 number, since 2×20772674² = 863007970220552, 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, 23057 + ... + 23940.

Almost surely, 2^20772674 is an apocalyptic number.

20772674 is a deficient number, since it is larger than the sum of its proper divisors (14757814).

20772674 is a wasteful number, since it uses less digits than its factorization.

20772674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47029.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 20772674 is about 4557.7049048836. The cubic root of 20772674 is about 274.8932875217.

The spelling of 20772674 in words is "twenty million, seven hundred seventy-two thousand, six hundred seventy-four".