20952416 has 24 divisors (see below), whose sum is σ = 41635440. Its totient is φ = 10378368.

The previous prime is 20952403. The next prime is 20952433. The reversal of 20952416 is 61425902.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (1734810).

Almost surely, 2^20952416 is an apocalyptic number.

It is an amenable number.

20952416 is a deficient number, since it is larger than the sum of its proper divisors (20683024).

20952416 is a wasteful number, since it uses less digits than its factorization.

20952416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6126 (or 6118 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20952416 is about 4577.3809105208. The cubic root of 20952416 is about 275.6838780675.

It can be divided in two parts, 209 and 52416, that added together give a palindrome (52625).

The spelling of 20952416 in words is "twenty million, nine hundred fifty-two thousand, four hundred sixteen".