40591465 has 8 divisors (see below), whose sum is σ = 48744000. Its totient is φ = 32450352.

The previous prime is 40591457. The next prime is 40591471. The reversal of 40591465 is 56419504.

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 40591465 - 2³ = 40591457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40591465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12036 + ... + 15034.

It is an arithmetic number, because the mean of its divisors is an integer number (6093000).

Almost surely, 2^40591465 is an apocalyptic number.

It is an amenable number.

40591465 is a deficient number, since it is larger than the sum of its proper divisors (8152535).

40591465 is a wasteful number, since it uses less digits than its factorization.

40591465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 40591465 is about 6371.1431470341. The cubic root of 40591465 is about 343.6726000943.

The spelling of 40591465 in words is "forty million, five hundred ninety-one thousand, four hundred sixty-five".