74120440 has 16 divisors (see below), whose sum is σ = 166771080. Its totient is φ = 29648160.

The previous prime is 74120437. The next prime is 74120443. The reversal of 74120440 is 4402147.

It is an interprime number because it is at equal distance from previous prime (74120437) and next prime (74120443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74120443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926466 + ... + 926545.

Almost surely, 2^74120440 is an apocalyptic number.

It is an amenable number.

74120440 is an abundant number, since it is smaller than the sum of its proper divisors (92650640).

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

74120440 is a wasteful number, since it uses less digits than its factorization.

74120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853022 (or 1853018 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 74120440 is about 8609.3228537441. The cubic root of 74120440 is about 420.0612911309.

Adding to 74120440 its reverse (4402147), we get a palindrome (78522587).

The spelling of 74120440 in words is "seventy-four million, one hundred twenty thousand, four hundred forty".