1023442999 has 8 divisors (see below), whose sum is σ = 1087976880. Its totient is φ = 959976000.

The previous prime is 1023442997. The next prime is 1023443009. The reversal of 1023442999 is 9992443201.

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 1023442999 - 2¹ = 1023442997 is a prime.

It is a super-2 number, since 2×1023442999² = 2094871144404228002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023442997) 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, 264742 + ... + 268579.

It is an arithmetic number, because the mean of its divisors is an integer number (135997110).

Almost surely, 2^1023442999 is an apocalyptic number.

1023442999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1023442999 is a deficient number, since it is larger than the sum of its proper divisors (64533881).

1023442999 is a wasteful number, since it uses less digits than its factorization.

1023442999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533441.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1023442999 is about 31991.2956755427. The cubic root of 1023442999 is about 1007.7540522684.

The spelling of 1023442999 in words is "one billion, twenty-three million, four hundred forty-two thousand, nine hundred ninety-nine".