40325591 has 8 divisors (see below), whose sum is σ = 41395200. Its totient is φ = 39260160.

The previous prime is 40325587. The next prime is 40325603. The reversal of 40325591 is 19552304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40325591 - 2² = 40325587 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40325501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30890 + ... + 32168.

It is an arithmetic number, because the mean of its divisors is an integer number (5174400).

Almost surely, 2^40325591 is an apocalyptic number.

40325591 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

40325591 is a deficient number, since it is larger than the sum of its proper divisors (1069609).

40325591 is a wasteful number, since it uses less digits than its factorization.

40325591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 40325591 is about 6350.2433811626. The cubic root of 40325591 is about 342.9206042664.

Adding to 40325591 its reverse (19552304), we get a palindrome (59877895).

The spelling of 40325591 in words is "forty million, three hundred twenty-five thousand, five hundred ninety-one".