74691252 has 36 divisors (see below), whose sum is σ = 189083076. Its totient is φ = 24860160.

The previous prime is 74691241. The next prime is 74691259. The reversal of 74691252 is 25219647.

It can be written as a sum of positive squares in 2 ways, for example, as 47692836 + 26998416 = 6906^2 + 5196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74691259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34852 + ... + 36932.

Almost surely, 2^74691252 is an apocalyptic number.

It is an amenable number.

74691252 is an abundant number, since it is smaller than the sum of its proper divisors (114391824).

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

74691252 is a wasteful number, since it uses less digits than its factorization.

74691252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088 (or 3083 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 74691252 is about 8642.4100805273. The cubic root of 74691252 is about 421.1368519763.

The spelling of 74691252 in words is "seventy-four million, six hundred ninety-one thousand, two hundred fifty-two".