74706740 has 24 divisors (see below), whose sum is σ = 159036360. Its totient is φ = 29472768.

The previous prime is 74706739. The next prime is 74706743. The reversal of 74706740 is 4760747.

It can be written as a sum of positive squares in 4 ways, for example, as 712336 + 73994404 = 844^2 + 8602^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74706740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74706743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24125 + ... + 27044.

It is an arithmetic number, because the mean of its divisors is an integer number (6626515).

Almost surely, 2^74706740 is an apocalyptic number.

It is an amenable number.

74706740 is an abundant number, since it is smaller than the sum of its proper divisors (84329620).

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

74706740 is a wasteful number, since it uses less digits than its factorization.

74706740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51251 (or 51249 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 74706740 is about 8643.3060804301. The cubic root of 74706740 is about 421.1659589850.

The spelling of 74706740 in words is "seventy-four million, seven hundred six thousand, seven hundred forty".