74340440 has 32 divisors (see below), whose sum is σ = 168756480. Its totient is φ = 29471232.

The previous prime is 74340403. The next prime is 74340451. The reversal of 74340440 is 4404347.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3704 + ... + 12743.

It is an arithmetic number, because the mean of its divisors is an integer number (5273640).

Almost surely, 2^74340440 is an apocalyptic number.

It is an amenable number.

74340440 is an abundant number, since it is smaller than the sum of its proper divisors (94416040).

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

74340440 is a wasteful number, since it uses less digits than its factorization.

74340440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16571 (or 16567 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 74340440 is about 8622.0902338122. The cubic root of 74340440 is about 420.4764811576.

Adding to 74340440 its reverse (4404347), we get a palindrome (78744787).

The spelling of 74340440 in words is "seventy-four million, three hundred forty thousand, four hundred forty".