2145360 has 80 divisors (see below), whose sum is σ = 7606656. Its totient is φ = 489984.

The previous prime is 2145359. The next prime is 2145361. The reversal of 2145360 is 635412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2145359) and next prime (2145361).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042 + ... + 2318.

2^2145360 is an apocalyptic number.

2145360 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 2145360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3803328).

2145360 is an abundant number, since it is smaller than the sum of its proper divisors (5461296).

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

2145360 is a wasteful number, since it uses less digits than its factorization.

2145360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2145360 is about 1464.7047484049. The cubic root of 2145360 is about 128.9733735082.

The spelling of 2145360 in words is "two million, one hundred forty-five thousand, three hundred sixty".