2129310 has 48 divisors (see below), whose sum is σ = 5644080. Its totient is φ = 556800.

The previous prime is 2129293. The next prime is 2129321. The reversal of 2129310 is 139212.

It is a happy number.

It is a super-2 number, since 2×2129310² = 9067922152200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5110 + ... + 5510.

It is an arithmetic number, because the mean of its divisors is an integer number (117585).

2^2129310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2822040).

2129310 is an abundant number, since it is smaller than the sum of its proper divisors (3514770).

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

2129310 is a wasteful number, since it uses less digits than its factorization.

2129310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2129310 is about 1459.2155426804. The cubic root of 2129310 is about 128.6509402359.

The spelling of 2129310 in words is "two million, one hundred twenty-nine thousand, three hundred ten".