1426238889 has 16 divisors (see below), whose sum is σ = 1955291520. Its totient is φ = 924065280.

The previous prime is 1426238867. The next prime is 1426238893. The reversal of 1426238889 is 9888326241.

It is not a de Polignac number, because 1426238889 - 2⁷ = 1426238761 is a prime.

It is a super-3 number, since 3×1426238889³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1426238839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96204 + ... + 110034.

It is an arithmetic number, because the mean of its divisors is an integer number (122205720).

Almost surely, 2^1426238889 is an apocalyptic number.

It is an amenable number.

1426238889 is a deficient number, since it is larger than the sum of its proper divisors (529052631).

1426238889 is a wasteful number, since it uses less digits than its factorization.

1426238889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14800.

The product of its digits is 1327104, while the sum is 51.

The square root of 1426238889 is about 37765.5780969920. The cubic root of 1426238889 is about 1125.6345757177.

The spelling of 1426238889 in words is "one billion, four hundred twenty-six million, two hundred thirty-eight thousand, eight hundred eighty-nine".