40072315 has 8 divisors (see below), whose sum is σ = 50915520. Its totient is φ = 30172032.

The previous prime is 40072309. The next prime is 40072327. The reversal of 40072315 is 51327004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40072315 - 2⁵ = 40072283 is a prime.

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, 235635 + ... + 235804.

It is an arithmetic number, because the mean of its divisors is an integer number (6364440).

Almost surely, 2^40072315 is an apocalyptic number.

40072315 is a deficient number, since it is larger than the sum of its proper divisors (10843205).

40072315 is a wasteful number, since it uses less digits than its factorization.

40072315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471461.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40072315 is about 6330.2697414881. The cubic root of 40072315 is about 342.2011601130.

Adding to 40072315 its reverse (51327004), we get a palindrome (91399319).

The spelling of 40072315 in words is "forty million, seventy-two thousand, three hundred fifteen".