74812680 has 128 divisors (see below), whose sum is σ = 254275200. Its totient is φ = 19558656.

The previous prime is 74812679. The next prime is 74812681. The reversal of 74812680 is 8621847.

It is an interprime number because it is at equal distance from previous prime (74812679) and next prime (74812681).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (74812681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56587 + ... + 57893.

It is an arithmetic number, because the mean of its divisors is an integer number (1986525).

Almost surely, 2^74812680 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 74812680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127137600).

74812680 is an abundant number, since it is smaller than the sum of its proper divisors (179462520).

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

74812680 is a wasteful number, since it uses less digits than its factorization.

74812680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 74812680 is about 8649.4323513165. The cubic root of 74812680 is about 421.3649470439.

The spelling of 74812680 in words is "seventy-four million, eight hundred twelve thousand, six hundred eighty".