20302874 has 8 divisors (see below), whose sum is σ = 30953748. Its totient is φ = 9984960.

The previous prime is 20302853. The next prime is 20302897. The reversal of 20302874 is 47820302.

It can be written as a sum of positive squares in 2 ways, for example, as 13579225 + 6723649 = 3685^2 + 2593^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83087 + ... + 83330.

Almost surely, 2^20302874 is an apocalyptic number.

20302874 is a deficient number, since it is larger than the sum of its proper divisors (10650874).

20302874 is a wasteful number, since it uses less digits than its factorization.

20302874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166480.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 20302874 is about 4505.8710589630. The cubic root of 20302874 is about 272.8051134509.

The spelling of 20302874 in words is "twenty million, three hundred two thousand, eight hundred seventy-four".