74451456 has 120 divisors (see below), whose sum is σ = 218316384. Its totient is φ = 24422400.

The previous prime is 74451427. The next prime is 74451467. The reversal of 74451456 is 65415447.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 74451456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492981 + ... + 493131.

Almost surely, 2^74451456 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 74451456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109158192).

74451456 is an abundant number, since it is smaller than the sum of its proper divisors (143864928).

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

74451456 is a wasteful number, since it uses less digits than its factorization.

74451456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 263 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 74451456 is about 8628.5257141646. The cubic root of 74451456 is about 420.6856826816.

The spelling of 74451456 in words is "seventy-four million, four hundred fifty-one thousand, four hundred fifty-six".