20371894 has 4 divisors (see below), whose sum is σ = 30557844. Its totient is φ = 10185946.

The previous prime is 20371873. The next prime is 20371927. The reversal of 20371894 is 49817302.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5092972 + ... + 5092975.

It is an arithmetic number, because the mean of its divisors is an integer number (7639461).

Almost surely, 2^20371894 is an apocalyptic number.

20371894 is a deficient number, since it is larger than the sum of its proper divisors (10185950).

20371894 is a wasteful number, since it uses less digits than its factorization.

20371894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10185949.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20371894 is about 4513.5234573446. The cubic root of 20371894 is about 273.1138991695.

The spelling of 20371894 in words is "twenty million, three hundred seventy-one thousand, eight hundred ninety-four".