40340325 has 24 divisors (see below), whose sum is σ = 70208800. Its totient is φ = 20381760.

The previous prime is 40340317. The next prime is 40340329. The reversal of 40340325 is 52304304.

It is a happy number.

It is not a de Polignac number, because 40340325 - 2³ = 40340317 is a prime.

It is a super-2 number, since 2×40340325² = 3254683642211250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40340329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12730 + ... + 15579.

Almost surely, 2^40340325 is an apocalyptic number.

It is an amenable number.

40340325 is a deficient number, since it is larger than the sum of its proper divisors (29868475).

40340325 is a wasteful number, since it uses less digits than its factorization.

40340325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28341 (or 28336 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40340325 is about 6351.4033882285. The cubic root of 40340325 is about 342.9623641581.

Adding to 40340325 its reverse (52304304), we get a palindrome (92644629).

The spelling of 40340325 in words is "forty million, three hundred forty thousand, three hundred twenty-five".