74282327640 has 128 divisors (see below), whose sum is σ = 247767076800. Its totient is φ = 19795875840.

The previous prime is 74282327633. The next prime is 74282327653. The reversal of 74282327640 is 4672328247.

74282327640 is a `hidden beast` number, since 7 + 4 + 282 + 327 + 6 + 40 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1720720 + ... + 1763360.

Almost surely, 2^74282327640 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 74282327640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123883538400).

74282327640 is an abundant number, since it is smaller than the sum of its proper divisors (173484749160).

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

74282327640 is a wasteful number, since it uses less digits than its factorization.

74282327640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44274 (or 44264 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 74282327640 in words is "seventy-four billion, two hundred eighty-two million, three hundred twenty-seven thousand, six hundred forty".