20374986 has 8 divisors (see below), whose sum is σ = 40749984. Its totient is φ = 6791660.

The previous prime is 20374979. The next prime is 20374997. The reversal of 20374986 is 68947302.

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

20374986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1697910 + ... + 1697921.

It is an arithmetic number, because the mean of its divisors is an integer number (5093748).

Almost surely, 2^20374986 is an apocalyptic number.

20374986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20374986 is a wasteful number, since it uses less digits than its factorization.

20374986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395836.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 20374986 is about 4513.8659705401. The cubic root of 20374986 is about 273.1277160072.

The spelling of 20374986 in words is "twenty million, three hundred seventy-four thousand, nine hundred eighty-six".