1428588 has 36 divisors (see below), whose sum is σ = 4127760. Its totient is φ = 408096.

The previous prime is 1428587. The next prime is 1428593. The reversal of 1428588 is 8858241.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1428587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2583 + ... + 3086.

It is an arithmetic number, because the mean of its divisors is an integer number (114660).

2^1428588 is an apocalyptic number.

1428588 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1428588 is an abundant number, since it is smaller than the sum of its proper divisors (2699172).

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

1428588 is a wasteful number, since it uses less digits than its factorization.

1428588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5686 (or 5681 counting only the distinct ones).

The product of its digits is 20480, while the sum is 36.

The square root of 1428588 is about 1195.2355416402. The cubic root of 1428588 is about 112.6252235252.

It can be divided in two parts, 1428 and 588, that added together give a triangular number (2016 = T₆₃).

The spelling of 1428588 in words is "one million, four hundred twenty-eight thousand, five hundred eighty-eight".