40245504 has 144 divisors (see below), whose sum is σ = 120187200. Its totient is φ = 11870208.

The previous prime is 40245503. The next prime is 40245521. The reversal of 40245504 is 40554204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (40245503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289467 + ... + 289605.

Almost surely, 2^40245504 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 40245504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60093600).

40245504 is an abundant number, since it is smaller than the sum of its proper divisors (79941696).

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

40245504 is a wasteful number, since it uses less digits than its factorization.

40245504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 40245504 is about 6343.9344258906. The cubic root of 40245504 is about 342.6934393094.

Adding to 40245504 its reverse (40554204), we get a palindrome (80799708).

The spelling of 40245504 in words is "forty million, two hundred forty-five thousand, five hundred four".