74391060 has 48 divisors (see below), whose sum is σ = 208756800. Its totient is φ = 19793664.

The previous prime is 74391047. The next prime is 74391077. The reversal of 74391060 is 6019347.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 33051 + ... + 35229.

It is an arithmetic number, because the mean of its divisors is an integer number (4349100).

Almost surely, 2^74391060 is an apocalyptic number.

It is an amenable number.

74391060 is an abundant number, since it is smaller than the sum of its proper divisors (134365740).

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

74391060 is a wasteful number, since it uses less digits than its factorization.

74391060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 74391060 is about 8625.0252173544. The cubic root of 74391060 is about 420.5718966554.

The spelling of 74391060 in words is "seventy-four million, three hundred ninety-one thousand, sixty".