74239460 has 48 divisors (see below), whose sum is σ = 166252800. Its totient is φ = 27765504.

The previous prime is 74239421. The next prime is 74239463. The reversal of 74239460 is 6493247.

It is a super-2 number, since 2×74239460² = 11022994842183200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74239460.

It is not an unprimeable number, because it can be changed into a prime (74239463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28784 + ... + 31256.

It is an arithmetic number, because the mean of its divisors is an integer number (3463600).

Almost surely, 2^74239460 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 74239460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83126400).

74239460 is an abundant number, since it is smaller than the sum of its proper divisors (92013340).

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

74239460 is a wasteful number, since it uses less digits than its factorization.

74239460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580 (or 2578 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 74239460 is about 8616.2323552699. The cubic root of 74239460 is about 420.2860107821.

The spelling of 74239460 in words is "seventy-four million, two hundred thirty-nine thousand, four hundred sixty".