40416345 has 24 divisors (see below), whose sum is σ = 71687616. Its totient is φ = 21053088.

The previous prime is 40416329. The next prime is 40416347. The reversal of 40416345 is 54361404.

40416345 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 40416345 - 2⁴ = 40416329 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40416347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8509 + ... + 12378.

It is an arithmetic number, because the mean of its divisors is an integer number (2986984).

Almost surely, 2^40416345 is an apocalyptic number.

40416345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40416345 is a deficient number, since it is larger than the sum of its proper divisors (31271271).

40416345 is a wasteful number, since it uses less digits than its factorization.

40416345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20941 (or 20938 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40416345 is about 6357.3850756423. The cubic root of 40416345 is about 343.1776626944.

Adding to 40416345 its reverse (54361404), we get a palindrome (94777749).

The spelling of 40416345 in words is "forty million, four hundred sixteen thousand, three hundred forty-five".