20334402 has 40 divisors (see below), whose sum is σ = 49710672. Its totient is φ = 6161400.

The previous prime is 20334383. The next prime is 20334403. The reversal of 20334402 is 20443302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20334403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3924 + ... + 7487.

Almost surely, 2^20334402 is an apocalyptic number.

20334402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20334402 is an abundant number, since it is smaller than the sum of its proper divisors (29376270).

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

20334402 is a wasteful number, since it uses less digits than its factorization.

20334402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11436 (or 11427 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20334402 is about 4509.3682484357. The cubic root of 20334402 is about 272.9462519475.

Adding to 20334402 its reverse (20443302), we get a palindrome (40777704).

Subtracting 20334402 from its reverse (20443302), we obtain a square (108900 = 330²).

It can be divided in two parts, 20334 and 402, that added together give a 4-th power (20736 = 12⁴).

The spelling of 20334402 in words is "twenty million, three hundred thirty-four thousand, four hundred two".