74289960 has 96 divisors (see below), whose sum is σ = 250417440. Its totient is φ = 19808064.

The previous prime is 74289959. The next prime is 74289961. The reversal of 74289960 is 6998247.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74289959) and next prime (74289961).

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

It is not an unprimeable number, because it can be changed into a prime (74289961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5899 + ... + 13541.

It is an arithmetic number, because the mean of its divisors is an integer number (2608515).

Almost surely, 2^74289960 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 74289960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125208720).

74289960 is an abundant number, since it is smaller than the sum of its proper divisors (176127480).

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

74289960 is a wasteful number, since it uses less digits than its factorization.

74289960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669 (or 7653 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 74289960 is about 8619.1623722958. The cubic root of 74289960 is about 420.3812864071.

The spelling of 74289960 in words is "seventy-four million, two hundred eighty-nine thousand, nine hundred sixty".