20342744 has 16 divisors (see below), whose sum is σ = 40386600. Its totient is φ = 9572992.

The previous prime is 20342731. The next prime is 20342753. The reversal of 20342744 is 44724302.

It is a congruent number.

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, 74654 + ... + 74925.

Almost surely, 2^20342744 is an apocalyptic number.

It is an amenable number.

20342744 is a deficient number, since it is larger than the sum of its proper divisors (20043856).

20342744 is a wasteful number, since it uses less digits than its factorization.

20342744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149602 (or 149598 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 20342744 is about 4510.2931168606. The cubic root of 20342744 is about 272.9835714015.

The spelling of 20342744 in words is "twenty million, three hundred forty-two thousand, seven hundred forty-four".