1428676191 has 8 divisors (see below), whose sum is σ = 2116557360. Its totient is φ = 952450776.

The previous prime is 1428676159. The next prime is 1428676231. The reversal of 1428676191 is 1916768241.

1428676191 is a `hidden beast` number, since 1 + 4 + 28 + 6 + 7 + 619 + 1 = 666.

It is not a de Polignac number, because 1428676191 - 2⁵ = 1428676159 is a prime.

It is a super-2 number, since 2×1428676191² = 4082231317460536962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428606191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26456940 + ... + 26456993.

It is an arithmetic number, because the mean of its divisors is an integer number (264569670).

Almost surely, 2^1428676191 is an apocalyptic number.

1428676191 is a deficient number, since it is larger than the sum of its proper divisors (687881169).

1428676191 is an equidigital number, since it uses as much as digits as its factorization.

1428676191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52913942 (or 52913936 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 1428676191 is about 37797.8331521795. The cubic root of 1428676191 is about 1126.2754104121.

The spelling of 1428676191 in words is "one billion, four hundred twenty-eight million, six hundred seventy-six thousand, one hundred ninety-one".