20332494 has 48 divisors (see below), whose sum is σ = 54224352. Its totient is φ = 5361984.

The previous prime is 20332469. The next prime is 20332511. The reversal of 20332494 is 49423302.

It is a happy number.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4569 + ... + 7844.

It is an arithmetic number, because the mean of its divisors is an integer number (1129674).

Almost surely, 2^20332494 is an apocalyptic number.

20332494 is an abundant number, since it is smaller than the sum of its proper divisors (33891858).

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

20332494 is a wasteful number, since it uses less digits than its factorization.

20332494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441 (or 12438 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 20332494 is about 4509.1566839044. The cubic root of 20332494 is about 272.9377147284.

Adding to 20332494 its reverse (49423302), we get a palindrome (69755796).

The spelling of 20332494 in words is "twenty million, three hundred thirty-two thousand, four hundred ninety-four".