40245464 has 24 divisors (see below), whose sum is σ = 87781140. Its totient is φ = 17247888.

The previous prime is 40245461. The next prime is 40245481. The reversal of 40245464 is 46454204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245461) 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 5 ways as a sum of consecutive naturals, for example, 50942 + ... + 51725.

Almost surely, 2^40245464 is an apocalyptic number.

It is an amenable number.

40245464 is an abundant number, since it is smaller than the sum of its proper divisors (47535676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40245464 is a wasteful number, since it uses less digits than its factorization.

40245464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102687 (or 102676 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 40245464 is about 6343.9312732721. The cubic root of 40245464 is about 342.6933257751.

Adding to 40245464 its reverse (46454204), we get a palindrome (86699668).

The spelling of 40245464 in words is "forty million, two hundred forty-five thousand, four hundred sixty-four".