1420442449 has 2 divisors, whose sum is σ = 1420442450. Its totient is φ = 1420442448.

The previous prime is 1420442437. The next prime is 1420442483. The reversal of 1420442449 is 9442440241.

It is an a-pointer prime, because the next prime (1420442483) can be obtained adding 1420442449 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009650625 + 410791824 = 31775^2 + 20268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1420442449 - 2⁹ = 1420441937 is a prime.

It is a super-2 number, since 2×1420442449² = 4035313501842235202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1420445449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710221224 + 710221225.

It is an arithmetic number, because the mean of its divisors is an integer number (710221225).

Almost surely, 2^1420442449 is an apocalyptic number.

It is an amenable number.

1420442449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420442449 is an equidigital number, since it uses as much as digits as its factorization.

1420442449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 1420442449 is about 37688.7575942747. The cubic root of 1420442449 is about 1124.1075916076.

The spelling of 1420442449 in words is "one billion, four hundred twenty million, four hundred forty-two thousand, four hundred forty-nine".