2122704 has 30 divisors (see below), whose sum is σ = 5941026. Its totient is φ = 707520.

The previous prime is 2122697. The next prime is 2122709. The reversal of 2122704 is 4072212.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 14400 = 1452^2 + 120^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122709) 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, 7227 + ... + 7514.

2^2122704 is an apocalyptic number.

2122704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2122704 is an abundant number, since it is smaller than the sum of its proper divisors (3818322).

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

2122704 is a wasteful number, since it uses less digits than its factorization.

2122704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14755 (or 14746 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2122704 is about 1456.9502393699. The cubic root of 2122704 is about 128.5177596109.

Adding to 2122704 its reverse (4072212), we get a palindrome (6194916).

It can be divided in two parts, 212 and 2704, that added together give a square (2916 = 54²).

The spelling of 2122704 in words is "two million, one hundred twenty-two thousand, seven hundred four".