74187066 has 16 divisors (see below), whose sum is σ = 148968288. Its totient is φ = 24630000.

The previous prime is 74187037. The next prime is 74187079. The reversal of 74187066 is 66078147.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23125 + ... + 26136.

It is an arithmetic number, because the mean of its divisors is an integer number (9310518).

Almost surely, 2^74187066 is an apocalyptic number.

74187066 is an abundant number, since it is smaller than the sum of its proper divisors (74781222).

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

74187066 is a wasteful number, since it uses less digits than its factorization.

74187066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49517.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 74187066 is about 8613.1913945993. The cubic root of 74187066 is about 420.1871161711.

The spelling of 74187066 in words is "seventy-four million, one hundred eighty-seven thousand, sixty-six".