74895840 has 120 divisors (see below), whose sum is σ = 264365640. Its totient is φ = 19968768.

The previous prime is 74895823. The next prime is 74895851. The reversal of 74895840 is 4859847.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10071 + ... + 15849.

It is an arithmetic number, because the mean of its divisors is an integer number (2203047).

Almost surely, 2^74895840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74895840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132182820).

74895840 is an abundant number, since it is smaller than the sum of its proper divisors (189469800).

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

74895840 is a wasteful number, since it uses less digits than its factorization.

74895840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5789 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 74895840 is about 8654.2382680395. The cubic root of 74895840 is about 421.5210156566.

The spelling of 74895840 in words is "seventy-four million, eight hundred ninety-five thousand, eight hundred forty".