20374138 has 8 divisors (see below), whose sum is σ = 30732480. Its totient is φ = 10129980.

The previous prime is 20374129. The next prime is 20374139. The reversal of 20374138 is 83147302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20374139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28098 + ... + 28813.

It is an arithmetic number, because the mean of its divisors is an integer number (3841560).

Almost surely, 2^20374138 is an apocalyptic number.

20374138 is a deficient number, since it is larger than the sum of its proper divisors (10358342).

20374138 is a wasteful number, since it uses less digits than its factorization.

20374138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57092.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20374138 is about 4513.7720367781. The cubic root of 20374138 is about 273.1239267937.

The spelling of 20374138 in words is "twenty million, three hundred seventy-four thousand, one hundred thirty-eight".