20367138 has 32 divisors (see below), whose sum is σ = 44603712. Its totient is φ = 6148800.

The previous prime is 20367101. The next prime is 20367143. The reversal of 20367138 is 83176302.

It is a super-2 number, since 2×20367138² = 829640620622088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27420 + ... + 28152.

It is an arithmetic number, because the mean of its divisors is an integer number (1393866).

Almost surely, 2^20367138 is an apocalyptic number.

20367138 is an abundant number, since it is smaller than the sum of its proper divisors (24236574).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20367138 is a wasteful number, since it uses less digits than its factorization.

20367138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20367138 is about 4512.9965654762. The cubic root of 20367138 is about 273.0926438917.

The spelling of 20367138 in words is "twenty million, three hundred sixty-seven thousand, one hundred thirty-eight".