20187342 has 24 divisors (see below), whose sum is σ = 49988016. Its totient is φ = 5767776.

The previous prime is 20187331. The next prime is 20187373. The reversal of 20187342 is 24378102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79983 + ... + 80234.

It is an arithmetic number, because the mean of its divisors is an integer number (2082834).

Almost surely, 2^20187342 is an apocalyptic number.

20187342 is an abundant number, since it is smaller than the sum of its proper divisors (29800674).

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

20187342 is a wasteful number, since it uses less digits than its factorization.

20187342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160232 (or 160229 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 20187342 is about 4493.0326061581. The cubic root of 20187342 is about 272.2866697211.

The spelling of 20187342 in words is "twenty million, one hundred eighty-seven thousand, three hundred forty-two".