40305260 has 24 divisors (see below), whose sum is σ = 86078160. Its totient is φ = 15848384.

The previous prime is 40305253. The next prime is 40305311. The reversal of 40305260 is 6250304.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15899 + ... + 18258.

It is an arithmetic number, because the mean of its divisors is an integer number (3586590).

Almost surely, 2^40305260 is an apocalyptic number.

It is an amenable number.

40305260 is an abundant number, since it is smaller than the sum of its proper divisors (45772900).

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

40305260 is a wasteful number, since it uses less digits than its factorization.

40305260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34225 (or 34223 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40305260 is about 6348.6423745554. The cubic root of 40305260 is about 342.8629643522.

Adding to 40305260 its reverse (6250304), we get a palindrome (46555564).

The spelling of 40305260 in words is "forty million, three hundred five thousand, two hundred sixty".