20046970 has 16 divisors (see below), whose sum is σ = 37060488. Its totient is φ = 7801920.

The previous prime is 20046959. The next prime is 20047009. The reversal of 20046970 is 7964002.

20046970 = 718² + 719² + ... + 754².

It can be written as a sum of positive squares in 4 ways, for example, as 13741849 + 6305121 = 3707^2 + 2511^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26721 + ... + 27460.

Almost surely, 2^20046970 is an apocalyptic number.

20046970 is a deficient number, since it is larger than the sum of its proper divisors (17013518).

20046970 is a wasteful number, since it uses less digits than its factorization.

20046970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54225.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20046970 is about 4477.3842810284. The cubic root of 20046970 is about 271.6540891882.

Subtracting from 20046970 its product of nonzero digits (3024), we obtain a triangular number (20043946 = T₆₃₃₁).

The spelling of 20046970 in words is "twenty million, forty-six thousand, nine hundred seventy".