42387250 has 32 divisors (see below), whose sum is σ = 81214848. Its totient is φ = 16556400.

The previous prime is 42387217. The next prime is 42387287. The reversal of 42387250 is 5278324.

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, 8779 + ... + 12721.

It is an arithmetic number, because the mean of its divisors is an integer number (2537964).

Almost surely, 2^42387250 is an apocalyptic number.

42387250 is a deficient number, since it is larger than the sum of its proper divisors (38827598).

42387250 is a wasteful number, since it uses less digits than its factorization.

42387250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003 (or 3993 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 42387250 is about 6510.5491319857. The cubic root of 42387250 is about 348.6677242397.

The spelling of 42387250 in words is "forty-two million, three hundred eighty-seven thousand, two hundred fifty".