20476994 has 8 divisors (see below), whose sum is σ = 30791820. Its totient is φ = 10213056.

The previous prime is 20476933. The next prime is 20477053. The reversal of 20476994 is 49967402.

It can be written as a sum of positive squares in 2 ways, for example, as 20475625 + 1369 = 4525^2 + 37^2 .

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, 11699 + ... + 13334.

Almost surely, 2^20476994 is an apocalyptic number.

20476994 is a deficient number, since it is larger than the sum of its proper divisors (10314826).

20476994 is a wasteful number, since it uses less digits than its factorization.

20476994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25444.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 20476994 is about 4525.1512681898. The cubic root of 20476994 is about 273.5827649078.

The spelling of 20476994 in words is "twenty million, four hundred seventy-six thousand, nine hundred ninety-four".