1042303643 has 24 divisors (see below), whose sum is σ = 1138798080. Its totient is φ = 953447040.

The previous prime is 1042303637. The next prime is 1042303649. The reversal of 1042303643 is 3463032401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1042303637) and next prime (1042303649).

It is not a de Polignac number, because 1042303643 - 2²⁰ = 1041255067 is a prime.

It is a super-2 number, since 2×1042303643² = 2172793768422142898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042303649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1620680 + ... + 1621322.

It is an arithmetic number, because the mean of its divisors is an integer number (47449920).

Almost surely, 2^1042303643 is an apocalyptic number.

1042303643 is a deficient number, since it is larger than the sum of its proper divisors (96494437).

1042303643 is an equidigital number, since it uses as much as digits as its factorization.

1042303643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1042303643 is about 32284.7277052169. The cubic root of 1042303643 is about 1013.9069154917.

The spelling of 1042303643 in words is "one billion, forty-two million, three hundred three thousand, six hundred forty-three".