40245315 has 16 divisors (see below), whose sum is σ = 70246656. Its totient is φ = 19512800.

The previous prime is 40245311. The next prime is 40245319. The reversal of 40245315 is 51354204.

It is an interprime number because it is at equal distance from previous prime (40245311) and next prime (40245319).

It is not a de Polignac number, because 40245315 - 2² = 40245311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40245311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121791 + ... + 122120.

It is an arithmetic number, because the mean of its divisors is an integer number (4390416).

Almost surely, 2^40245315 is an apocalyptic number.

40245315 is a deficient number, since it is larger than the sum of its proper divisors (30001341).

40245315 is a wasteful number, since it uses less digits than its factorization.

40245315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243930.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 40245315 is about 6343.9195297545. The cubic root of 40245315 is about 342.6929028589.

Adding to 40245315 its reverse (51354204), we get a palindrome (91599519).

Subtracting 40245315 from its reverse (51354204), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 4024 and 5315, that added together give a palindrome (9339).

The spelling of 40245315 in words is "forty million, two hundred forty-five thousand, three hundred fifteen".