40416465 has 16 divisors (see below), whose sum is σ = 65727936. Its totient is φ = 21201600.

The previous prime is 40416461. The next prime is 40416491. The reversal of 40416465 is 56461404.

It is not a de Polignac number, because 40416465 - 2² = 40416461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40416461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21171 + ... + 23000.

It is an arithmetic number, because the mean of its divisors is an integer number (4107996).

Almost surely, 2^40416465 is an apocalyptic number.

It is an amenable number.

40416465 is a deficient number, since it is larger than the sum of its proper divisors (25311471).

40416465 is a wasteful number, since it uses less digits than its factorization.

40416465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44240.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 40416465 is about 6357.3945134780. The cubic root of 40416465 is about 343.1780023365.

Adding to 40416465 its reverse (56461404), we get a palindrome (96877869).

The spelling of 40416465 in words is "forty million, four hundred sixteen thousand, four hundred sixty-five".