20752394 has 16 divisors (see below), whose sum is σ = 34981632. Its totient is φ = 9161328.

The previous prime is 20752363. The next prime is 20752399. The reversal of 20752394 is 49325702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20752394.

It is not an unprimeable number, because it can be changed into a prime (20752399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16754 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (2186352).

Almost surely, 2^20752394 is an apocalyptic number.

20752394 is a deficient number, since it is larger than the sum of its proper divisors (14229238).

20752394 is a wasteful number, since it uses less digits than its factorization.

20752394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34741.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 20752394 is about 4555.4795576317. The cubic root of 20752394 is about 274.8038005502.

The spelling of 20752394 in words is "twenty million, seven hundred fifty-two thousand, three hundred ninety-four".