74135432 has 48 divisors (see below), whose sum is σ = 162450000. Its totient is φ = 31624992.

The previous prime is 74135429. The next prime is 74135437. The reversal of 74135432 is 23453147.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74135395 and 74135404.

It is not an unprimeable number, because it can be changed into a prime (74135437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148319 + ... + 148817.

It is an arithmetic number, because the mean of its divisors is an integer number (3384375).

Almost surely, 2^74135432 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 74135432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81225000).

74135432 is an abundant number, since it is smaller than the sum of its proper divisors (88314568).

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

74135432 is a wasteful number, since it uses less digits than its factorization.

74135432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898 (or 887 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 74135432 is about 8610.1934937608. The cubic root of 74135432 is about 420.0896105091.

Adding to 74135432 its reverse (23453147), we get a palindrome (97588579).

The spelling of 74135432 in words is "seventy-four million, one hundred thirty-five thousand, four hundred thirty-two".