20374930 has 8 divisors (see below), whose sum is σ = 36674892. Its totient is φ = 8149968.

The previous prime is 20374903. The next prime is 20374931. The reversal of 20374930 is 3947302.

It can be written as a sum of positive squares in 2 ways, for example, as 19210689 + 1164241 = 4383^2 + 1079^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20374931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018737 + ... + 1018756.

Almost surely, 2^20374930 is an apocalyptic number.

20374930 is a deficient number, since it is larger than the sum of its proper divisors (16299962).

20374930 is a wasteful number, since it uses less digits than its factorization.

20374930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037500.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20374930 is about 4513.8597674274. The cubic root of 20374930 is about 273.1274657793.

The spelling of 20374930 in words is "twenty million, three hundred seventy-four thousand, nine hundred thirty".