20374634 has 16 divisors (see below), whose sum is σ = 35054208. Its totient is φ = 8700432.

The previous prime is 20374609. The next prime is 20374637. The reversal of 20374634 is 43647302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20374597 and 20374606.

It is not an unprimeable number, because it can be changed into a prime (20374637) 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 7 ways as a sum of consecutive naturals, for example, 1619 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (2190888).

Almost surely, 2^20374634 is an apocalyptic number.

20374634 is a deficient number, since it is larger than the sum of its proper divisors (14679574).

20374634 is a wasteful number, since it uses less digits than its factorization.

20374634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 20374634 is about 4513.8269794045. The cubic root of 20374634 is about 273.1261431389.

The spelling of 20374634 in words is "twenty million, three hundred seventy-four thousand, six hundred thirty-four".