74217480 has 64 divisors (see below), whose sum is σ = 226324800. Its totient is φ = 19464960.

The previous prime is 74217469. The next prime is 74217491. The reversal of 74217480 is 8471247.

It is an interprime number because it is at equal distance from previous prime (74217469) and next prime (74217491).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2251 + ... + 12389.

It is an arithmetic number, because the mean of its divisors is an integer number (3536325).

Almost surely, 2^74217480 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 74217480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113162400).

74217480 is an abundant number, since it is smaller than the sum of its proper divisors (152107320).

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

74217480 is a wasteful number, since it uses less digits than its factorization.

74217480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214 (or 10210 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 74217480 is about 8614.9567613541. The cubic root of 74217480 is about 420.2445288067.

The spelling of 74217480 in words is "seventy-four million, two hundred seventeen thousand, four hundred eighty".