1426346289 has 9 divisors (see below), whose sum is σ = 2060441643. Its totient is φ = 950821992.

The previous prime is 1426346287. The next prime is 1426346351. The reversal of 1426346289 is 9826436241.

The square root of 1426346289 is 37767.

It is a perfect power (a square), and thus also a powerful number.

1426346289 is a `hidden beast` number, since 1 + 4 + 2 + 634 + 6 + 2 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 117353889 + 1308992400 = 10833^2 + 36180^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1426346289 - 2¹ = 1426346287 is a prime.

It is a super-2 number, since 2×1426346289² = 4068927472288143042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1426346281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 107007 + ... + 119595.

Almost surely, 2^1426346289 is an apocalyptic number.

1426346289 is the 37767-th square number.

1426346289 is the 18884-th centered octagonal number.

It is an amenable number.

1426346289 is a deficient number, since it is larger than the sum of its proper divisors (634095354).

1426346289 is an frugal number, since it uses more digits than its factorization.

1426346289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25184 (or 12592 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The cubic root of 1426346289 is about 1125.6628295443.

The spelling of 1426346289 in words is "one billion, four hundred twenty-six million, three hundred forty-six thousand, two hundred eighty-nine".