40015323 has 8 divisors (see below), whose sum is σ = 59282000. Its totient is φ = 26676864.

The previous prime is 40015279. The next prime is 40015361. The reversal of 40015323 is 32351004.

It is not a de Polignac number, because 40015323 - 2⁶ = 40015259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40015296 and 40015305.

It is not an unprimeable number, because it can be changed into a prime (40015363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740998 + ... + 741051.

It is an arithmetic number, because the mean of its divisors is an integer number (7410250).

Almost surely, 2^40015323 is an apocalyptic number.

40015323 is a deficient number, since it is larger than the sum of its proper divisors (19266677).

40015323 is a wasteful number, since it uses less digits than its factorization.

40015323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482058 (or 1482052 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 40015323 is about 6325.7665938604. The cubic root of 40015323 is about 342.0388536960.

Adding to 40015323 its reverse (32351004), we get a palindrome (72366327).

The spelling of 40015323 in words is "forty million, fifteen thousand, three hundred twenty-three".