20332456 has 16 divisors (see below), whose sum is σ = 38196000. Its totient is φ = 10146864.

The previous prime is 20332439. The next prime is 20332469. The reversal of 20332456 is 65423302.

It is a happy number.

It is a super-3 number, since 3×20332456³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20332456.

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, 2671 + ... + 6913.

It is an arithmetic number, because the mean of its divisors is an integer number (2387250).

Almost surely, 2^20332456 is an apocalyptic number.

It is an amenable number.

20332456 is a deficient number, since it is larger than the sum of its proper divisors (17863544).

20332456 is a wasteful number, since it uses less digits than its factorization.

20332456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848 (or 4844 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 20332456 is about 4509.1524702542. The cubic root of 20332456 is about 272.9375446945.

Adding to 20332456 its reverse (65423302), we get a palindrome (85755758).

It can be divided in two parts, 2033 and 2456, that added together give a square (4489 = 67²).

The spelling of 20332456 in words is "twenty million, three hundred thirty-two thousand, four hundred fifty-six".