427540188 has 48 divisors (see below), whose sum is σ = 1018967040. Its totient is φ = 139473984.

The previous prime is 427540177. The next prime is 427540213. The reversal of 427540188 is 881045724.

It is a happy number.

It is a super-2 number, since 2×427540188² = 365581224710150688, which contains 22 as substring.

It is a congruent number.

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, 410973 + ... + 412011.

It is an arithmetic number, because the mean of its divisors is an integer number (21228480).

Almost surely, 2^427540188 is an apocalyptic number.

It is an amenable number.

427540188 is an abundant number, since it is smaller than the sum of its proper divisors (591426852).

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

427540188 is a wasteful number, since it uses less digits than its factorization.

427540188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1744 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 427540188 is about 20677.0449532809. The cubic root of 427540188 is about 753.3422322980.

The spelling of 427540188 in words is "four hundred twenty-seven million, five hundred forty thousand, one hundred eighty-eight".