20675492 has 24 divisors (see below), whose sum is σ = 37731960. Its totient is φ = 9900800.

The previous prime is 20675483. The next prime is 20675507. The reversal of 20675492 is 29457602.

It can be written as a sum of positive squares in 4 ways, for example, as 118336 + 20557156 = 344^2 + 4534^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15242 + ... + 16542.

It is an arithmetic number, because the mean of its divisors is an integer number (1572165).

Almost surely, 2^20675492 is an apocalyptic number.

It is an amenable number.

20675492 is a deficient number, since it is larger than the sum of its proper divisors (17056468).

20675492 is a wasteful number, since it uses less digits than its factorization.

20675492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 20675492 is about 4547.0311193129. The cubic root of 20675492 is about 274.4639342222.

The spelling of 20675492 in words is "twenty million, six hundred seventy-five thousand, four hundred ninety-two".