1428539676 has 12 divisors (see below), whose sum is σ = 3333259272. Its totient is φ = 476179888.

The previous prime is 1428539669. The next prime is 1428539711. The reversal of 1428539676 is 6769358241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1428539676³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59522475 + ... + 59522498.

It is an arithmetic number, because the mean of its divisors is an integer number (277771606).

Almost surely, 2^1428539676 is an apocalyptic number.

It is an amenable number.

1428539676 is an abundant number, since it is smaller than the sum of its proper divisors (1904719596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1428539676 is a wasteful number, since it uses less digits than its factorization.

1428539676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119044980 (or 119044978 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 1428539676 is about 37796.0272515512. The cubic root of 1428539676 is about 1126.2395360863.

The spelling of 1428539676 in words is "one billion, four hundred twenty-eight million, five hundred thirty-nine thousand, six hundred seventy-six".