74455040 has 96 divisors (see below), whose sum is σ = 195184080. Its totient is φ = 27033600.

The previous prime is 74455039. The next prime is 74455049. The reversal of 74455040 is 4055447.

It is a junction number, because it is equal to n+sod(n) for n = 74454994 and 74455012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74455049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112310 + ... + 112970.

Almost surely, 2^74455040 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 74455040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97592040).

74455040 is an abundant number, since it is smaller than the sum of its proper divisors (120729040).

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

74455040 is a wasteful number, since it uses less digits than its factorization.

74455040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 74455040 is about 8628.7333948848. The cubic root of 74455040 is about 420.6924330008.

The spelling of 74455040 in words is "seventy-four million, four hundred fifty-five thousand, forty".