20186342 has 16 divisors (see below), whose sum is σ = 33106752. Its totient is φ = 9154920.

The previous prime is 20186339. The next prime is 20186351. The reversal of 20186342 is 24368102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13433 + ... + 14859.

It is an arithmetic number, because the mean of its divisors is an integer number (2069172).

Almost surely, 2^20186342 is an apocalyptic number.

20186342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20186342 is a deficient number, since it is larger than the sum of its proper divisors (12920410).

20186342 is a wasteful number, since it uses less digits than its factorization.

20186342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 20186342 is about 4492.9213213676. The cubic root of 20186342 is about 272.2821736502.

The spelling of 20186342 in words is "twenty million, one hundred eighty-six thousand, three hundred forty-two".