20746252 has 24 divisors (see below), whose sum is σ = 39538800. Its totient is φ = 9487296.

The previous prime is 20746249. The next prime is 20746277. The reversal of 20746252 is 25264702.

It is a self number, because there is not a number n which added to its sum of digits gives 20746252.

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, 2503 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (1647450).

Almost surely, 2^20746252 is an apocalyptic number.

It is an amenable number.

20746252 is a deficient number, since it is larger than the sum of its proper divisors (18792548).

20746252 is a wasteful number, since it uses less digits than its factorization.

20746252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9465 (or 9463 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20746252 is about 4554.8053745468. The cubic root of 20746252 is about 274.7766870280.

The spelling of 20746252 in words is "twenty million, seven hundred forty-six thousand, two hundred fifty-two".