40045099 has 8 divisors (see below), whose sum is σ = 40721312. Its totient is φ = 39372480.

The previous prime is 40045079. The next prime is 40045121. The reversal of 40045099 is 99054004.

It is a happy number.

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 40045099 - 2⁵ = 40045067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40045099.

It is not an unprimeable number, because it can be changed into a prime (40045009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30082 + ... + 31384.

It is an arithmetic number, because the mean of its divisors is an integer number (5090164).

Almost surely, 2^40045099 is an apocalyptic number.

40045099 is a deficient number, since it is larger than the sum of its proper divisors (676213).

40045099 is a wasteful number, since it uses less digits than its factorization.

40045099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 40045099 is about 6328.1197049361. The cubic root of 40045099 is about 342.1236714027.

The spelling of 40045099 in words is "forty million, forty-five thousand, ninety-nine".