20952396 has 18 divisors (see below), whose sum is σ = 52963092. Its totient is φ = 6984120.

The previous prime is 20952377. The next prime is 20952401. The reversal of 20952396 is 69325902.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 582011 = 20952396 / (2 + 0 + 9 + 5 + 2 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 20952396.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290970 + ... + 291041.

It is an arithmetic number, because the mean of its divisors is an integer number (2942394).

Almost surely, 2^20952396 is an apocalyptic number.

It is an amenable number.

20952396 is an abundant number, since it is smaller than the sum of its proper divisors (32010696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20952396 is a wasteful number, since it uses less digits than its factorization.

20952396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582021 (or 582016 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 20952396 is about 4577.3787258648. The cubic root of 20952396 is about 275.6837903500.

The spelling of 20952396 in words is "twenty million, nine hundred fifty-two thousand, three hundred ninety-six".