20933902 has 32 divisors (see below), whose sum is σ = 36578304. Its totient is φ = 8880000.

The previous prime is 20933893. The next prime is 20933921.

It is a happy number.

20933902 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83277 + ... + 83527.

It is an arithmetic number, because the mean of its divisors is an integer number (1143072).

Almost surely, 2^20933902 is an apocalyptic number.

20933902 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20933902 is a deficient number, since it is larger than the sum of its proper divisors (15644402).

20933902 is a wasteful number, since it uses less digits than its factorization.

20933902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 20933902 is about 4575.3581280595. The cubic root of 20933902 is about 275.6026540948.

It can be divided in two parts, 2093 and 3902, that added together give a palindrome (5995).

The spelling of 20933902 in words is "twenty million, nine hundred thirty-three thousand, nine hundred two".