1428195770 has 32 divisors (see below), whose sum is σ = 2709605520. Its totient is φ = 541166080.

The previous prime is 1428195767. The next prime is 1428195793. The reversal of 1428195770 is 775918241.

It can be written as a sum of positive squares in 8 ways, for example, as 292033921 + 1136161849 = 17089^2 + 33707^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31091 + ... + 61830.

Almost surely, 2^1428195770 is an apocalyptic number.

1428195770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428195770 is a deficient number, since it is larger than the sum of its proper divisors (1281409750).

1428195770 is a wasteful number, since it uses less digits than its factorization.

1428195770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93010.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 1428195770 is about 37791.4774783945. The cubic root of 1428195770 is about 1126.1491520329.

The spelling of 1428195770 in words is "one billion, four hundred twenty-eight million, one hundred ninety-five thousand, seven hundred seventy".