1042242449 has 2 divisors, whose sum is σ = 1042242450. Its totient is φ = 1042242448.

The previous prime is 1042242431. The next prime is 1042242457. The reversal of 1042242449 is 9442422401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006158400 + 36084049 = 31720^2 + 6007^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042242449 - 2⁸ = 1042242193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042242499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521121224 + 521121225.

It is an arithmetic number, because the mean of its divisors is an integer number (521121225).

Almost surely, 2^1042242449 is an apocalyptic number.

It is an amenable number.

1042242449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042242449 is an equidigital number, since it uses as much as digits as its factorization.

1042242449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1042242449 is about 32283.7799676556. The cubic root of 1042242449 is about 1013.8870728305.

The spelling of 1042242449 in words is "one billion, forty-two million, two hundred forty-two thousand, four hundred forty-nine".