74739340 has 48 divisors (see below), whose sum is σ = 169823808. Its totient is φ = 27465984.

The previous prime is 74739337. The next prime is 74739341. The reversal of 74739340 is 4393747.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 74739340.

It is not an unprimeable number, because it can be changed into a prime (74739341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67834 + ... + 68926.

It is an arithmetic number, because the mean of its divisors is an integer number (3537996).

Almost surely, 2^74739340 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 74739340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84911904).

74739340 is an abundant number, since it is smaller than the sum of its proper divisors (95084468).

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

74739340 is a wasteful number, since it uses less digits than its factorization.

74739340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 74739340 is about 8645.1917271973. The cubic root of 74739340 is about 421.2272118859.

The spelling of 74739340 in words is "seventy-four million, seven hundred thirty-nine thousand, three hundred forty".