1972449359 has 2 divisors, whose sum is σ = 1972449360. Its totient is φ = 1972449358.

The previous prime is 1972449343. The next prime is 1972449383. The reversal of 1972449359 is 9539442791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1972449359 - 2⁴ = 1972449343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1972449359.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1972449659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986224679 + 986224680.

It is an arithmetic number, because the mean of its divisors is an integer number (986224680).

Almost surely, 2^1972449359 is an apocalyptic number.

1972449359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1972449359 is an equidigital number, since it uses as much as digits as its factorization.

1972449359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 53.

The square root of 1972449359 is about 44412.2658620341. The cubic root of 1972449359 is about 1254.1090079626.

The spelling of 1972449359 in words is "one billion, nine hundred seventy-two million, four hundred forty-nine thousand, three hundred fifty-nine".