40115760 has 40 divisors (see below), whose sum is σ = 124359600. Its totient is φ = 10697472.

The previous prime is 40115741. The next prime is 40115773. The reversal of 40115760 is 6751104.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40115760.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83335 + ... + 83814.

It is an arithmetic number, because the mean of its divisors is an integer number (3108990).

Almost surely, 2^40115760 is an apocalyptic number.

40115760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40115760 is an abundant number, since it is smaller than the sum of its proper divisors (84243840).

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

40115760 is a wasteful number, since it uses less digits than its factorization.

40115760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167165 (or 167159 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 40115760 is about 6333.7003402435. The cubic root of 40115760 is about 342.3247829509.

Adding to 40115760 its reverse (6751104), we get a palindrome (46866864).

It can be divided in two parts, 401 and 15760, that added together give a palindrome (16161).

The spelling of 40115760 in words is "forty million, one hundred fifteen thousand, seven hundred sixty".