1042452431 has 4 divisors (see below), whose sum is σ = 1044278664. Its totient is φ = 1040626200.

The previous prime is 1042452421. The next prime is 1042452443. The reversal of 1042452431 is 1342542401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1342542401 = 271 ⋅4954031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042452431 is a prime.

It is a super-2 number, since 2×1042452431² = 2173414141795619522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042452431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042452421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 912260 + ... + 913401.

It is an arithmetic number, because the mean of its divisors is an integer number (261069666).

Almost surely, 2^1042452431 is an apocalyptic number.

1042452431 is a deficient number, since it is larger than the sum of its proper divisors (1826233).

1042452431 is an equidigital number, since it uses as much as digits as its factorization.

1042452431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826232.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1042452431 is about 32287.0319323409. The cubic root of 1042452431 is about 1013.9551579930.

Adding to 1042452431 its reverse (1342542401), we get a palindrome (2384994832).

The spelling of 1042452431 in words is "one billion, forty-two million, four hundred fifty-two thousand, four hundred thirty-one".