74245132 has 24 divisors (see below), whose sum is σ = 141218000. Its totient is φ = 33950016.

The previous prime is 74245123. The next prime is 74245139. The reversal of 74245132 is 23154247.

It is a self number, because there is not a number n which added to its sum of digits gives 74245132.

It is not an unprimeable number, because it can be changed into a prime (74245139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882 + ... + 12217.

Almost surely, 2^74245132 is an apocalyptic number.

It is an amenable number.

74245132 is a deficient number, since it is larger than the sum of its proper divisors (66972868).

74245132 is a wasteful number, since it uses less digits than its factorization.

74245132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225 (or 13223 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 74245132 is about 8616.5614951673. The cubic root of 74245132 is about 420.2967139919.

Adding to 74245132 its reverse (23154247), we get a palindrome (97399379).

The spelling of 74245132 in words is "seventy-four million, two hundred forty-five thousand, one hundred thirty-two".