74445330 has 32 divisors (see below), whose sum is σ = 179324928. Its totient is φ = 19779200.

The previous prime is 74445313. The next prime is 74445347. The reversal of 74445330 is 3354447.

It is an interprime number because it is at equal distance from previous prime (74445313) and next prime (74445347).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4015 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (5603904).

Almost surely, 2^74445330 is an apocalyptic number.

74445330 is an abundant number, since it is smaller than the sum of its proper divisors (104879598).

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

74445330 is a wasteful number, since it uses less digits than its factorization.

74445330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122.

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 74445330 is about 8628.1707215377. The cubic root of 74445330 is about 420.6741441063.

Adding to 74445330 its reverse (3354447), we get a palindrome (77799777).

The spelling of 74445330 in words is "seventy-four million, four hundred forty-five thousand, three hundred thirty".