40309360 has 160 divisors (see below), whose sum is σ = 118742400. Its totient is φ = 12644352.

The previous prime is 40309351. The next prime is 40309421. The reversal of 40309360 is 6390304.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 356664 + ... + 356776.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^40309360 is an apocalyptic number.

40309360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40309360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59371200).

40309360 is an abundant number, since it is smaller than the sum of its proper divisors (78433040).

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

40309360 is a wasteful number, since it uses less digits than its factorization.

40309360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 40309360 is about 6348.9652700263. The cubic root of 40309360 is about 342.8745897206.

Adding to 40309360 its product of nonzero digits (1944), we get a palindrome (40311304).

Adding to 40309360 its reverse (6390304), we get a palindrome (46699664).

The spelling of 40309360 in words is "forty million, three hundred nine thousand, three hundred sixty".