74825040 has 160 divisors (see below), whose sum is σ = 249091200. Its totient is φ = 18524160.

The previous prime is 74825033. The next prime is 74825053. The reversal of 74825040 is 4052847.

It is a super-2 number, since 2×74825040² = 11197573222003200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 74824989 and 74825007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278026 + ... + 278294.

It is an arithmetic number, because the mean of its divisors is an integer number (1556820).

Almost surely, 2^74825040 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 74825040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124545600).

74825040 is an abundant number, since it is smaller than the sum of its proper divisors (174266160).

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

74825040 is a wasteful number, since it uses less digits than its factorization.

74825040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 74825040 is about 8650.1468195632. The cubic root of 74825040 is about 421.3881507039.

Adding to 74825040 its reverse (4052847), we get a palindrome (78877887).

The spelling of 74825040 in words is "seventy-four million, eight hundred twenty-five thousand, forty".