20374705 has 16 divisors (see below), whose sum is σ = 26437824. Its totient is φ = 14984640.

The previous prime is 20374699. The next prime is 20374709. The reversal of 20374705 is 50747302.

It is not a de Polignac number, because 20374705 - 2⁷ = 20374577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20374709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21042 + ... + 21988.

It is an arithmetic number, because the mean of its divisors is an integer number (1652364).

Almost surely, 2^20374705 is an apocalyptic number.

It is an amenable number.

20374705 is a deficient number, since it is larger than the sum of its proper divisors (6063119).

20374705 is a wasteful number, since it uses less digits than its factorization.

20374705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 20374705 is about 4513.8348441209. The cubic root of 20374705 is about 273.1264603950.

The spelling of 20374705 in words is "twenty million, three hundred seventy-four thousand, seven hundred five".