42237387 has 12 divisors (see below), whose sum is σ = 62658960. Its totient is φ = 27397008.

The previous prime is 42237379. The next prime is 42237409. The reversal of 42237387 is 78373224.

42237387 is a `hidden beast` number, since 42 + 237 + 387 = 666.

It is not a de Polignac number, because 42237387 - 2³ = 42237379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42237317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63087 + ... + 63752.

It is an arithmetic number, because the mean of its divisors is an integer number (5221580).

Almost surely, 2^42237387 is an apocalyptic number.

42237387 is a deficient number, since it is larger than the sum of its proper divisors (20421573).

42237387 is a wasteful number, since it uses less digits than its factorization.

42237387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126882 (or 126879 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 42237387 is about 6499.0296968086. The cubic root of 42237387 is about 348.2563262130.

It can be divided in two parts, 42237 and 387, that added together give a palindrome (42624).

The spelling of 42237387 in words is "forty-two million, two hundred thirty-seven thousand, three hundred eighty-seven".