74460040 has 16 divisors (see below), whose sum is σ = 167535180. Its totient is φ = 29784000.

The previous prime is 74460019. The next prime is 74460049. The reversal of 74460040 is 4006447.

74460040 = 2221² + 2222² + ... + 2235².

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 64738116 + 9721924 = 8046^2 + 3118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 74459987 and 74460014.

It is not an unprimeable number, because it can be changed into a prime (74460049) 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, 930711 + ... + 930790.

Almost surely, 2^74460040 is an apocalyptic number.

It is an amenable number.

74460040 is an abundant number, since it is smaller than the sum of its proper divisors (93075140).

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

74460040 is a wasteful number, since it uses less digits than its factorization.

74460040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861512 (or 1861508 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 74460040 is about 8629.0231196816. The cubic root of 74460040 is about 420.7018499370.

Adding to 74460040 its reverse (4006447), we get a palindrome (78466487).

The spelling of 74460040 in words is "seventy-four million, four hundred sixty thousand, forty".