42687900 has 54 divisors (see below), whose sum is σ = 133805672. Its totient is φ = 11383200.

The previous prime is 42687893. The next prime is 42687917. The reversal of 42687900 is 978624.

It is a super-3 number, since 3×42687900³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22816 + ... + 24615.

Almost surely, 2^42687900 is an apocalyptic number.

It is an amenable number.

42687900 is an abundant number, since it is smaller than the sum of its proper divisors (91117772).

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

42687900 is a wasteful number, since it uses less digits than its factorization.

42687900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47451 (or 47441 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 42687900 is about 6533.5977837636. The cubic root of 42687900 is about 349.4901419853.

The spelling of 42687900 in words is "forty-two million, six hundred eighty-seven thousand, nine hundred".