40799019 has 4 divisors (see below), whose sum is σ = 54398696. Its totient is φ = 27199344.

The previous prime is 40798991. The next prime is 40799039. The reversal of 40799019 is 91099704.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-40799019 is a prime.

It is a super-2 number, since 2×40799019² = 3329119902724722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40799039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6799834 + ... + 6799839.

It is an arithmetic number, because the mean of its divisors is an integer number (13599674).

Almost surely, 2^40799019 is an apocalyptic number.

40799019 is a deficient number, since it is larger than the sum of its proper divisors (13599677).

40799019 is a wasteful number, since it uses less digits than its factorization.

40799019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13599676.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 40799019 is about 6387.4109778532. The cubic root of 40799019 is about 344.2573649795.

The spelling of 40799019 in words is "forty million, seven hundred ninety-nine thousand, nineteen".