1040218399 has 8 divisors (see below), whose sum is σ = 1135083600. Its totient is φ = 945403200.

The previous prime is 1040218393. The next prime is 1040218433. The reversal of 1040218399 is 9938120401.

1040218399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1040218399 - 2⁵ = 1040218367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040218393) 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, 40969 + ... + 61309.

It is an arithmetic number, because the mean of its divisors is an integer number (141885450).

Almost surely, 2^1040218399 is an apocalyptic number.

1040218399 is a deficient number, since it is larger than the sum of its proper divisors (94865201).

1040218399 is a wasteful number, since it uses less digits than its factorization.

1040218399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25001.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1040218399 is about 32252.4169481917. The cubic root of 1040218399 is about 1013.2303196899.

The spelling of 1040218399 in words is "one billion, forty million, two hundred eighteen thousand, three hundred ninety-nine".