40001325 has 48 divisors (see below), whose sum is σ = 81411456. Its totient is φ = 16876800.

The previous prime is 40001303. The next prime is 40001359. The reversal of 40001325 is 52310004.

It is not a de Polignac number, because 40001325 - 2⁷ = 40001197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3895 + ... + 9755.

It is an arithmetic number, because the mean of its divisors is an integer number (1696072).

Almost surely, 2^40001325 is an apocalyptic number.

It is an amenable number.

40001325 is an abundant number, since it is smaller than the sum of its proper divisors (41410131).

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

40001325 is a wasteful number, since it uses less digits than its factorization.

40001325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5894 (or 5889 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 40001325 is about 6324.6600699168. The cubic root of 40001325 is about 341.9989654905.

Adding to 40001325 its reverse (52310004), we get a palindrome (92311329).

The spelling of 40001325 in words is "forty million, one thousand, three hundred twenty-five".