74372886 has 144 divisors (see below), whose sum is σ = 200710224. Its totient is φ = 19813248.

The previous prime is 74372861. The next prime is 74372933. The reversal of 74372886 is 68827347.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1403236 + ... + 1403288.

It is an arithmetic number, because the mean of its divisors is an integer number (1393821).

Almost surely, 2^74372886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74372886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100355112).

74372886 is an abundant number, since it is smaller than the sum of its proper divisors (126337338).

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

74372886 is a wasteful number, since it uses less digits than its factorization.

74372886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 145 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 74372886 is about 8623.9715908623. The cubic root of 74372886 is about 420.5376447970.

The spelling of 74372886 in words is "seventy-four million, three hundred seventy-two thousand, eight hundred eighty-six".