40043465 has 16 divisors (see below), whose sum is σ = 59909760. Its totient is φ = 24961920.

The previous prime is 40043417. The next prime is 40043467. The reversal of 40043465 is 56434004.

It is not a de Polignac number, because 40043465 - 2⁶ = 40043401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40043467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51620 + ... + 52389.

It is an arithmetic number, because the mean of its divisors is an integer number (3744360).

Almost surely, 2^40043465 is an apocalyptic number.

It is an amenable number.

40043465 is a deficient number, since it is larger than the sum of its proper divisors (19866295).

40043465 is a wasteful number, since it uses less digits than its factorization.

40043465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104032.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40043465 is about 6327.9905973381. The cubic root of 40043465 is about 342.1190180019.

Adding to 40043465 its reverse (56434004), we get a palindrome (96477469).

The spelling of 40043465 in words is "forty million, forty-three thousand, four hundred sixty-five".