20344754 has 4 divisors (see below), whose sum is σ = 30517134. Its totient is φ = 10172376.

The previous prime is 20344703. The next prime is 20344759. The reversal of 20344754 is 45744302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45744302 = 2 ⋅22872151.

It can be written as a sum of positive squares in only one way, i.e., 20295025 + 49729 = 4505^2 + 223^2 .

It is not an unprimeable number, because it can be changed into a prime (20344759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5086187 + ... + 5086190.

Almost surely, 2^20344754 is an apocalyptic number.

20344754 is a deficient number, since it is larger than the sum of its proper divisors (10172380).

20344754 is a wasteful number, since it uses less digits than its factorization.

20344754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172379.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 20344754 is about 4510.5159350123. The cubic root of 20344754 is about 272.9925619767.

The spelling of 20344754 in words is "twenty million, three hundred forty-four thousand, seven hundred fifty-four".