40025344 has 54 divisors (see below), whose sum is σ = 85027334. Its totient is φ = 18800640.

The previous prime is 40025311. The next prime is 40025351. The reversal of 40025344 is 44352004.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14137600 + 25887744 = 3760^2 + 5088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73714 + ... + 74254.

Almost surely, 2^40025344 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 40025344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42513667).

40025344 is an abundant number, since it is smaller than the sum of its proper divisors (45001990).

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

40025344 is an equidigital number, since it uses as much as digits as its factorization.

40025344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 40025344 is about 6326.5586221895. The cubic root of 40025344 is about 342.0674034698.

Adding to 40025344 its reverse (44352004), we get a palindrome (84377348).

The spelling of 40025344 in words is "forty million, twenty-five thousand, three hundred forty-four".