74701440 has 320 divisors, whose sum is σ = 293245920. Its totient is φ = 17971200.

The previous prime is 74701439. The next prime is 74701457. The reversal of 74701440 is 4410747.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 570175 + ... + 570305.

Almost surely, 2^74701440 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 74701440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146622960).

74701440 is an abundant number, since it is smaller than the sum of its proper divisors (218544480).

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

74701440 is a wasteful number, since it uses less digits than its factorization.

74701440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 74701440 is about 8642.9994793474. Note that the first 3 decimals coincide. The cubic root of 74701440 is about 421.1559990074.

The spelling of 74701440 in words is "seventy-four million, seven hundred one thousand, four hundred forty".