20304854 has 4 divisors (see below), whose sum is σ = 30457284. Its totient is φ = 10152426.

The previous prime is 20304839. The next prime is 20304899. The reversal of 20304854 is 45840302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45840302 = 2 ⋅22920151.

It is a super-2 number, since 2×20304854² = 824574191922632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5076212 + ... + 5076215.

It is an arithmetic number, because the mean of its divisors is an integer number (7614321).

Almost surely, 2^20304854 is an apocalyptic number.

20304854 is a deficient number, since it is larger than the sum of its proper divisors (10152430).

20304854 is a wasteful number, since it uses less digits than its factorization.

20304854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10152429.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 20304854 is about 4506.0907669509. The cubic root of 20304854 is about 272.8139814330.

The spelling of 20304854 in words is "twenty million, three hundred four thousand, eight hundred fifty-four".