40317280 has 24 divisors (see below), whose sum is σ = 95249952. Its totient is φ = 16126848.

The previous prime is 40317271. The next prime is 40317283. The reversal of 40317280 is 8271304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40317283) 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 3 ways as a sum of consecutive naturals, for example, 125832 + ... + 126151.

It is an arithmetic number, because the mean of its divisors is an integer number (3968748).

Almost surely, 2^40317280 is an apocalyptic number.

40317280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40317280 is an abundant number, since it is smaller than the sum of its proper divisors (54932672).

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

40317280 is a wasteful number, since it uses less digits than its factorization.

40317280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251998 (or 251990 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40317280 is about 6349.5889630747. The cubic root of 40317280 is about 342.8970442979.

Adding to 40317280 its reverse (8271304), we get a palindrome (48588584).

It can be divided in two parts, 4031 and 7280, that added together give a palindrome (11311).

The spelling of 40317280 in words is "forty million, three hundred seventeen thousand, two hundred eighty".