40231465 has 16 divisors (see below), whose sum is σ = 49170240. Its totient is φ = 31596480.

The previous prime is 40231447. The next prime is 40231481. The reversal of 40231465 is 56413204.

It is a de Polignac number, because none of the positive numbers 2^k-40231465 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74095 + ... + 74635.

It is an arithmetic number, because the mean of its divisors is an integer number (3073140).

Almost surely, 2^40231465 is an apocalyptic number.

It is an amenable number.

40231465 is a deficient number, since it is larger than the sum of its proper divisors (8938775).

40231465 is a wasteful number, since it uses less digits than its factorization.

40231465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40231465 is about 6342.8278393789. The cubic root of 40231465 is about 342.6535869678.

Adding to 40231465 its reverse (56413204), we get a palindrome (96644669).

The spelling of 40231465 in words is "forty million, two hundred thirty-one thousand, four hundred sixty-five".