42374187 has 12 divisors (see below), whose sum is σ = 61378720. Its totient is φ = 28170288.

The previous prime is 42374173. The next prime is 42374201. The reversal of 42374187 is 78147324.

It is a happy number.

42374187 is a `hidden beast` number, since 4 + 237 + 418 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (42374173) and next prime (42374201).

It is a de Polignac number, because none of the positive numbers 2^k-42374187 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (42374147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3112 + ... + 9717.

Almost surely, 2^42374187 is an apocalyptic number.

42374187 is a deficient number, since it is larger than the sum of its proper divisors (19004533).

42374187 is a wasteful number, since it uses less digits than its factorization.

42374187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13202 (or 13199 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 42374187 is about 6509.5458366924. The cubic root of 42374187 is about 348.6319028198.

The spelling of 42374187 in words is "forty-two million, three hundred seventy-four thousand, one hundred eighty-seven".