40115460 has 192 divisors, whose sum is σ = 147732480. Its totient is φ = 7879680.

The previous prime is 40115459. The next prime is 40115501. The reversal of 40115460 is 6451104.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87552 + ... + 88008.

It is an arithmetic number, because the mean of its divisors is an integer number (769440).

Almost surely, 2^40115460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40115460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73866240).

40115460 is an abundant number, since it is smaller than the sum of its proper divisors (107617020).

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

40115460 is a wasteful number, since it uses less digits than its factorization.

40115460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 40115460 is about 6333.6766573610. The cubic root of 40115460 is about 342.3239296063.

Adding to 40115460 its reverse (6451104), we get a palindrome (46566564).

The spelling of 40115460 in words is "forty million, one hundred fifteen thousand, four hundred sixty".