40099323 has 32 divisors (see below), whose sum is σ = 60279552. Its totient is φ = 23504000.

The previous prime is 40099313. The next prime is 40099331. The reversal of 40099323 is 32399004.

It is a cyclic number.

It is not a de Polignac number, because 40099323 - 2⁴ = 40099307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40099313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176536 + ... + 176762.

It is an arithmetic number, because the mean of its divisors is an integer number (1883736).

Almost surely, 2^40099323 is an apocalyptic number.

40099323 is a deficient number, since it is larger than the sum of its proper divisors (20180229).

40099323 is a wasteful number, since it uses less digits than its factorization.

40099323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 40099323 is about 6332.4026245968. The cubic root of 40099323 is about 342.2780219344.

The spelling of 40099323 in words is "forty million, ninety-nine thousand, three hundred twenty-three".