1428012 has 18 divisors (see below), whose sum is σ = 3609788. Its totient is φ = 475992.

The previous prime is 1427999. The next prime is 1428013. The reversal of 1428012 is 2108241.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1428013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19798 + ... + 19869.

2^1428012 is an apocalyptic number.

1428012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1428012 is an abundant number, since it is smaller than the sum of its proper divisors (2181776).

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

1428012 is a wasteful number, since it uses less digits than its factorization.

1428012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39677 (or 39672 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1428012 is about 1194.9945606571. The cubic root of 1428012 is about 112.6100848359.

The spelling of 1428012 in words is "one million, four hundred twenty-eight thousand, twelve".