2158460 has 12 divisors (see below), whose sum is σ = 4532808. Its totient is φ = 863376.

The previous prime is 2158459. The next prime is 2158477. The reversal of 2158460 is 648512.

It is a super-4 number, since 4×2158460⁴ (a number of 26 digits) contains 4444 as substring.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53942 + ... + 53981.

It is an arithmetic number, because the mean of its divisors is an integer number (377734).

2^2158460 is an apocalyptic number.

2158460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2158460 is an abundant number, since it is smaller than the sum of its proper divisors (2374348).

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

2158460 is a wasteful number, since it uses less digits than its factorization.

2158460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107932 (or 107930 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2158460 is about 1469.1698336135. The cubic root of 2158460 is about 129.2353534553.

The spelling of 2158460 in words is "two million, one hundred fifty-eight thousand, four hundred sixty".