74370040 has 64 divisors (see below), whose sum is σ = 175867200. Its totient is φ = 28250112.

The previous prime is 74370011. The next prime is 74370089. The reversal of 74370040 is 4007347.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 74369987 and 74370014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210504 + ... + 210856.

It is an arithmetic number, because the mean of its divisors is an integer number (2747925).

Almost surely, 2^74370040 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 74370040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87933600).

74370040 is an abundant number, since it is smaller than the sum of its proper divisors (101497160).

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

74370040 is a wasteful number, since it uses less digits than its factorization.

74370040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 74370040 is about 8623.8065841019. The cubic root of 74370040 is about 420.5322805419.

Adding to 74370040 its reverse (4007347), we get a palindrome (78377387).

The spelling of 74370040 in words is "seventy-four million, three hundred seventy thousand, forty".