1428894360 has 48 divisors (see below), whose sum is σ = 4643907840. Its totient is φ = 381038400.

The previous prime is 1428894289. The next prime is 1428894433. The reversal of 1428894360 is 634988241.

It is a happy number.

1428894360 is a `hidden beast` number, since 1 + 4 + 288 + 9 + 4 + 360 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1984216 + ... + 1984935.

It is an arithmetic number, because the mean of its divisors is an integer number (96748080).

Almost surely, 2^1428894360 is an apocalyptic number.

1428894360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1428894360 is an abundant number, since it is smaller than the sum of its proper divisors (3215013480).

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

1428894360 is a wasteful number, since it uses less digits than its factorization.

1428894360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969168 (or 3969161 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 1428894360 is about 37800.7190407802. The cubic root of 1428894360 is about 1126.3327375785.

The spelling of 1428894360 in words is "one billion, four hundred twenty-eight million, eight hundred ninety-four thousand, three hundred sixty".