40798815 has 16 divisors (see below), whose sum is σ = 65914368. Its totient is φ = 21547296.

The previous prime is 40798799. The next prime is 40798829. The reversal of 40798815 is 51889704.

It is not a de Polignac number, because 40798815 - 2⁴ = 40798799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11659 + ... + 14748.

It is an arithmetic number, because the mean of its divisors is an integer number (4119648).

Almost surely, 2^40798815 is an apocalyptic number.

40798815 is a deficient number, since it is larger than the sum of its proper divisors (25115553).

40798815 is a wasteful number, since it uses less digits than its factorization.

40798815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26518.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 40798815 is about 6387.3950089219. The cubic root of 40798815 is about 344.2567912025.

The spelling of 40798815 in words is "forty million, seven hundred ninety-eight thousand, eight hundred fifteen".