1042332491 has 2 divisors, whose sum is σ = 1042332492. Its totient is φ = 1042332490.

The previous prime is 1042332449. The next prime is 1042332539. The reversal of 1042332491 is 1942332401.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042332491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042332691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521166245 + 521166246.

It is an arithmetic number, because the mean of its divisors is an integer number (521166246).

Almost surely, 2^1042332491 is an apocalyptic number.

1042332491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042332491 is an equidigital number, since it uses as much as digits as its factorization.

1042332491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1042332491 is about 32285.1744768400. The cubic root of 1042332491 is about 1013.9162694252.

Adding to 1042332491 its reverse (1942332401), we get a palindrome (2984664892).

The spelling of 1042332491 in words is "one billion, forty-two million, three hundred thirty-two thousand, four hundred ninety-one".