74501280 has 288 divisors, whose sum is σ = 306633600. Its totient is φ = 16091136.

The previous prime is 74501279. The next prime is 74501303. The reversal of 74501280 is 8210547.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 191326 + ... + 191714.

It is an arithmetic number, because the mean of its divisors is an integer number (1064700).

Almost surely, 2^74501280 is an apocalyptic number.

74501280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74501280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153316800).

74501280 is an abundant number, since it is smaller than the sum of its proper divisors (232132320).

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

74501280 is a wasteful number, since it uses less digits than its factorization.

74501280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 74501280 is about 8631.4123989067. The cubic root of 74501280 is about 420.7795047534.

The spelling of 74501280 in words is "seventy-four million, five hundred one thousand, two hundred eighty".