74490416 has 80 divisors (see below), whose sum is σ = 193820928. Its totient is φ = 26784000.

The previous prime is 74490401. The next prime is 74490457. The reversal of 74490416 is 61409447.

It is a congruent number.

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, 13691 + ... + 18341.

Almost surely, 2^74490416 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 74490416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96910464).

74490416 is an abundant number, since it is smaller than the sum of its proper divisors (119330512).

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

74490416 is a wasteful number, since it uses less digits than its factorization.

74490416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690 (or 4684 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 74490416 is about 8630.7830467461. The cubic root of 74490416 is about 420.7590506495.

The spelling of 74490416 in words is "seventy-four million, four hundred ninety thousand, four hundred sixteen".