20969502 has 16 divisors (see below), whose sum is σ = 44146560. Its totient is φ = 6621912.

The previous prime is 20969497. The next prime is 20969513. The reversal of 20969502 is 20596902.

It is a congruent number.

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, 91858 + ... + 92085.

It is an arithmetic number, because the mean of its divisors is an integer number (2759160).

Almost surely, 2^20969502 is an apocalyptic number.

20969502 is an abundant number, since it is smaller than the sum of its proper divisors (23177058).

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

20969502 is a wasteful number, since it uses less digits than its factorization.

20969502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183967.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 20969502 is about 4579.2468813114. The cubic root of 20969502 is about 275.7587947254.

The spelling of 20969502 in words is "twenty million, nine hundred sixty-nine thousand, five hundred two".