42687484 has 24 divisors (see below), whose sum is σ = 85543808. Its totient is φ = 18258480.

The previous prime is 42687479. The next prime is 42687487. The reversal of 42687484 is 48478624.

It is a super-3 number, since 3×42687484³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42687484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42687487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16819 + ... + 19189.

Almost surely, 2^42687484 is an apocalyptic number.

It is an amenable number.

42687484 is an abundant number, since it is smaller than the sum of its proper divisors (42856324).

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

42687484 is a wasteful number, since it uses less digits than its factorization.

42687484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3025 (or 3023 counting only the distinct ones).

The product of its digits is 344064, while the sum is 43.

The square root of 42687484 is about 6533.5659482399. The cubic root of 42687484 is about 349.4890067036.

The spelling of 42687484 in words is "forty-two million, six hundred eighty-seven thousand, four hundred eighty-four".