20338450 has 24 divisors (see below), whose sum is σ = 41269680. Its totient is φ = 7395600.

The previous prime is 20338433. The next prime is 20338469. The reversal of 20338450 is 5483302.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17940 + ... + 19039.

It is an arithmetic number, because the mean of its divisors is an integer number (1719570).

Almost surely, 2^20338450 is an apocalyptic number.

20338450 is an abundant number, since it is smaller than the sum of its proper divisors (20931230).

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

20338450 is a wasteful number, since it uses less digits than its factorization.

20338450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37002 (or 36997 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20338450 is about 4509.8170694608. The cubic root of 20338450 is about 272.9643626861.

The spelling of 20338450 in words is "twenty million, three hundred thirty-eight thousand, four hundred fifty".