1428261119 has 4 divisors (see below), whose sum is σ = 1455209496. Its totient is φ = 1401312744.

The previous prime is 1428261113. The next prime is 1428261169. The reversal of 1428261119 is 9111628241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9111628241 = 101 ⋅90214141.

It is a cyclic number.

It is not a de Polignac number, because 1428261119 - 2¹⁶ = 1428195583 is a prime.

It is a super-2 number, since 2×1428261119² = 4079859648094264322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428261113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13474109 + ... + 13474214.

It is an arithmetic number, because the mean of its divisors is an integer number (363802374).

Almost surely, 2^1428261119 is an apocalyptic number.

1428261119 is a deficient number, since it is larger than the sum of its proper divisors (26948377).

1428261119 is an equidigital number, since it uses as much as digits as its factorization.

1428261119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26948376.

The product of its digits is 6912, while the sum is 35.

The square root of 1428261119 is about 37792.3420682021. The cubic root of 1428261119 is about 1126.1663279225.

The spelling of 1428261119 in words is "one billion, four hundred twenty-eight million, two hundred sixty-one thousand, one hundred nineteen".