2135420 has 36 divisors (see below), whose sum is σ = 5218920. Its totient is φ = 731808.

The previous prime is 2135417. The next prime is 2135447. The reversal of 2135420 is 245312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110 + ... + 2069.

It is an arithmetic number, because the mean of its divisors is an integer number (144970).

2^2135420 is an apocalyptic number.

2135420 is a gapful number since it is divisible by the number (20) 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 2135420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609460).

2135420 is an abundant number, since it is smaller than the sum of its proper divisors (3083500).

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

2135420 is a wasteful number, since it uses less digits than its factorization.

2135420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2193 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2135420 is about 1461.3076335940. The cubic root of 2135420 is about 128.7738762393.

The spelling of 2135420 in words is "two million, one hundred thirty-five thousand, four hundred twenty".