2180436 has 24 divisors (see below), whose sum is σ = 5137440. Its totient is φ = 719712.

The previous prime is 2180417. The next prime is 2180467. The reversal of 2180436 is 6340812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (214060).

2^2180436 is an apocalyptic number.

It is an amenable number.

2180436 is an abundant number, since it is smaller than the sum of its proper divisors (2957004).

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

2180436 is a wasteful number, since it uses less digits than its factorization.

2180436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1783 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 2180436 is about 1476.6299468723. The cubic root of 2180436 is about 129.6724693762.

The spelling of 2180436 in words is "two million, one hundred eighty thousand, four hundred thirty-six".