74247340 has 24 divisors (see below), whose sum is σ = 156083760. Its totient is φ = 29667648.

The previous prime is 74247331. The next prime is 74247343. The reversal of 74247340 is 4374247.

It is not an unprimeable number, because it can be changed into a prime (74247343) 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, 31234 + ... + 33526.

It is an arithmetic number, because the mean of its divisors is an integer number (6503490).

Almost surely, 2^74247340 is an apocalyptic number.

It is an amenable number.

74247340 is an abundant number, since it is smaller than the sum of its proper divisors (81836420).

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

74247340 is a wasteful number, since it uses less digits than its factorization.

74247340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3919 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 74247340 is about 8616.6896195697. The cubic root of 74247340 is about 420.3008803972.

The spelling of 74247340 in words is "seventy-four million, two hundred forty-seven thousand, three hundred forty".