20632402 has 8 divisors (see below), whose sum is σ = 35369856. Its totient is φ = 8842452.

The previous prime is 20632399. The next prime is 20632411. The reversal of 20632402 is 20423602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20632402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 736858 + ... + 736885.

It is an arithmetic number, because the mean of its divisors is an integer number (4421232).

Almost surely, 2^20632402 is an apocalyptic number.

20632402 is a deficient number, since it is larger than the sum of its proper divisors (14737454).

20632402 is a wasteful number, since it uses less digits than its factorization.

20632402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473752.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20632402 is about 4542.2903914215. The cubic root of 20632402 is about 274.2731305973.

It can be divided in two parts, 2063 and 2402, that added together give a triangular number (4465 = T₉₄).

The spelling of 20632402 in words is "twenty million, six hundred thirty-two thousand, four hundred two".