42087004 has 18 divisors (see below), whose sum is σ = 76285664. Its totient is φ = 20316240.

The previous prime is 42086969. The next prime is 42087029. The reversal of 42087004 is 40078024.

It is a self number, because there is not a number n which added to its sum of digits gives 42087004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2892 + ... + 9619.

Almost surely, 2^42087004 is an apocalyptic number.

It is an amenable number.

42087004 is a deficient number, since it is larger than the sum of its proper divisors (34198660).

42087004 is a wasteful number, since it uses less digits than its factorization.

42087004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12573 (or 12542 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 42087004 is about 6487.4497300557. The cubic root of 42087004 is about 347.8425213403.

The spelling of 42087004 in words is "forty-two million, eighty-seven thousand, four".