74040 has 32 divisors (see below), whose sum is σ = 222480. Its totient is φ = 19712.

The previous prime is 74027. The next prime is 74047. The reversal of 74040 is 4047.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74047) 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, 189 + ... + 428.

2⁷⁴⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

74040 is an abundant number, since it is smaller than the sum of its proper divisors (148440).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111240).

74040 is a wasteful number, since it uses less digits than its factorization.

74040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 74040 is about 272.1029217043. The cubic root of 74040 is about 41.9909277457.

Adding to 74040 its reverse (4047), we get a palindrome (78087).

It can be divided in two parts, 740 and 40, that added together give a triangular number (780 = T₃₉).

The spelling of 74040 in words is "seventy-four thousand, forty", and thus it is an iban number.