74752146 has 144 divisors (see below), whose sum is σ = 202666464. Its totient is φ = 20575296.

The previous prime is 74752133. The next prime is 74752157. The reversal of 74752146 is 64125747.

Its product of digits (47040) is a multiple of the sum of its prime factors (147).

It is a self number, because there is not a number n which added to its sum of digits gives 74752146.

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, 1023966 + ... + 1024038.

It is an arithmetic number, because the mean of its divisors is an integer number (1407406).

Almost surely, 2^74752146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74752146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101333232).

74752146 is an abundant number, since it is smaller than the sum of its proper divisors (127914318).

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

74752146 is a wasteful number, since it uses less digits than its factorization.

74752146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 128 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 74752146 is about 8645.9323383890. The cubic root of 74752146 is about 421.2512685055.

The spelling of 74752146 in words is "seventy-four million, seven hundred fifty-two thousand, one hundred forty-six".