74171272 has 48 divisors (see below), whose sum is σ = 168874560. Its totient is φ = 29911296.

The previous prime is 74171267. The next prime is 74171287. The reversal of 74171272 is 27217147.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13893 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (3518220).

Almost surely, 2^74171272 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 74171272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84437280).

74171272 is an abundant number, since it is smaller than the sum of its proper divisors (94703288).

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

74171272 is a wasteful number, since it uses less digits than its factorization.

74171272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4630 (or 4609 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 74171272 is about 8612.2744963221. The cubic root of 74171272 is about 420.1572955807.

The spelling of 74171272 in words is "seventy-four million, one hundred seventy-one thousand, two hundred seventy-two".