1428669898 has 16 divisors (see below), whose sum is σ = 2191529376. Its totient is φ = 698304240.

The previous prime is 1428669889. The next prime is 1428669917. The reversal of 1428669898 is 8989668241.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16036 + ... + 55807.

It is an arithmetic number, because the mean of its divisors is an integer number (136970586).

Almost surely, 2^1428669898 is an apocalyptic number.

1428669898 is a deficient number, since it is larger than the sum of its proper divisors (762859478).

1428669898 is a wasteful number, since it uses less digits than its factorization.

1428669898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72069.

The product of its digits is 11943936, while the sum is 61.

The square root of 1428669898 is about 37797.7499065751. The cubic root of 1428669898 is about 1126.2737567456.

The spelling of 1428669898 in words is "one billion, four hundred twenty-eight million, six hundred sixty-nine thousand, eight hundred ninety-eight".