2142828 has 24 divisors (see below), whose sum is σ = 5555760. Its totient is φ = 714240.

The previous prime is 2142823. The next prime is 2142857. The reversal of 2142828 is 8282412.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2142823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9813 + ... + 10028.

It is an arithmetic number, because the mean of its divisors is an integer number (231490).

2^2142828 is an apocalyptic number.

It is an amenable number.

2142828 is an abundant number, since it is smaller than the sum of its proper divisors (3412932).

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

2142828 is a wasteful number, since it uses less digits than its factorization.

2142828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19854 (or 19846 counting only the distinct ones).

The product of its digits is 2048, while the sum is 27.

The square root of 2142828 is about 1463.8401552082. The cubic root of 2142828 is about 128.9226144844.

It can be divided in two parts, 21 and 42828, that added together give a square (42849 = 207²).

The spelling of 2142828 in words is "two million, one hundred forty-two thousand, eight hundred twenty-eight".