74081532 has 108 divisors (see below), whose sum is σ = 212826600. Its totient is φ = 19994688.

The previous prime is 74081503. The next prime is 74081569. The reversal of 74081532 is 23518047.

It is a self number, because there is not a number n which added to its sum of digits gives 74081532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 212094 + ... + 212442.

Almost surely, 2^74081532 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 74081532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106413300).

74081532 is an abundant number, since it is smaller than the sum of its proper divisors (138745068).

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

74081532 is a wasteful number, since it uses less digits than its factorization.

74081532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 380 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 74081532 is about 8607.0629136773. The cubic root of 74081532 is about 419.9877774221.

Adding to 74081532 its reverse (23518047), we get a palindrome (97599579).

The spelling of 74081532 in words is "seventy-four million, eighty-one thousand, five hundred thirty-two".