1428049986 has 24 divisors (see below), whose sum is σ = 3139351152. Its totient is φ = 432742200.

The previous prime is 1428049981. The next prime is 1428050003. The reversal of 1428049986 is 6899408241.

It is not an unprimeable number, because it can be changed into a prime (1428049981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982780 + ... + 984231.

It is an arithmetic number, because the mean of its divisors is an integer number (130806298).

Almost surely, 2^1428049986 is an apocalyptic number.

1428049986 is an abundant number, since it is smaller than the sum of its proper divisors (1711301166).

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

1428049986 is a wasteful number, since it uses less digits than its factorization.

1428049986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967038 (or 1967027 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 1428049986 is about 37789.5486345100. The cubic root of 1428049986 is about 1126.1108332632.

The spelling of 1428049986 in words is "one billion, four hundred twenty-eight million, forty-nine thousand, nine hundred eighty-six".