74228028840 has 384 divisors, whose sum is σ = 292026009600. Its totient is φ = 15973148160.

The previous prime is 74228028803. The next prime is 74228028893. The reversal of 74228028840 is 4882082247.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7799685 + ... + 7809195.

It is an arithmetic number, because the mean of its divisors is an integer number (760484400).

Almost surely, 2^74228028840 is an apocalyptic number.

74228028840 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 74228028840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146013004800).

74228028840 is an abundant number, since it is smaller than the sum of its proper divisors (217797980760).

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

74228028840 is a wasteful number, since it uses less digits than its factorization.

74228028840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9717 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 45.

The spelling of 74228028840 in words is "seventy-four billion, two hundred twenty-eight million, twenty-eight thousand, eight hundred forty".