1382431049 has 2 divisors, whose sum is σ = 1382431050. Its totient is φ = 1382431048.

The previous prime is 1382431021. The next prime is 1382431067. The reversal of 1382431049 is 9401342831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741581824 + 640849225 = 27232^2 + 25315^2 .

It is a cyclic number.

It is not a de Polignac number, because 1382431049 - 2⁸ = 1382430793 is a prime.

It is a super-2 number, since 2×1382431049² = 3822231210478480802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1382431009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691215524 + 691215525.

It is an arithmetic number, because the mean of its divisors is an integer number (691215525).

Almost surely, 2^1382431049 is an apocalyptic number.

It is an amenable number.

1382431049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1382431049 is an equidigital number, since it uses as much as digits as its factorization.

1382431049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1382431049 is about 37181.0576638159. The cubic root of 1382431049 is about 1113.9896600910.

The spelling of 1382431049 in words is "one billion, three hundred eighty-two million, four hundred thirty-one thousand, forty-nine".