2149704 has 48 divisors (see below), whose sum is σ = 5916300. Its totient is φ = 705024.

The previous prime is 2149703. The next prime is 2149711. The reversal of 2149704 is 4079412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1988100 + 161604 = 1410^2 + 402^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5052 + ... + 5460.

2^2149704 is an apocalyptic number.

2149704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2149704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2958150).

2149704 is an abundant number, since it is smaller than the sum of its proper divisors (3766596).

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

2149704 is a wasteful number, since it uses less digits than its factorization.

2149704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2149704 is about 1466.1868912250. The cubic root of 2149704 is about 129.0603647535.

The spelling of 2149704 in words is "two million, one hundred forty-nine thousand, seven hundred four".