1042999999 has 8 divisors (see below), whose sum is σ = 1050672560. Its totient is φ = 1035343296.

The previous prime is 1042999981. The next prime is 1043000009. The reversal of 1042999999 is 9999992401.

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 1042999999 - 2⁷ = 1042999871 is a prime.

It is a Duffinian number.

1042999999 is a modest number, since divided by 99999 gives 10429 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042999499) 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, 149317 + ... + 156145.

It is an arithmetic number, because the mean of its divisors is an integer number (131334070).

Almost surely, 2^1042999999 is an apocalyptic number.

1042999999 is a deficient number, since it is larger than the sum of its proper divisors (7672561).

1042999999 is an equidigital number, since it uses as much as digits as its factorization.

1042999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7929.

The product of its (nonzero) digits is 4251528, while the sum is 61.

The square root of 1042999999 is about 32295.5105084283. The cubic root of 1042999999 is about 1014.1326600060.

The spelling of 1042999999 in words is "one billion, forty-two million, nine hundred ninety-nine thousand, nine hundred ninety-nine".