2130378 has 8 divisors (see below), whose sum is σ = 4260768. Its totient is φ = 710124.

The previous prime is 2130371. The next prime is 2130379. The reversal of 2130378 is 8730312.

It is a sphenic number, since it is the product of 3 distinct primes.

2130378 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2130371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177526 + ... + 177537.

It is an arithmetic number, because the mean of its divisors is an integer number (532596).

2^2130378 is an apocalyptic number.

2130378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2130378 is a wasteful number, since it uses less digits than its factorization.

2130378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355068.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2130378 is about 1459.5814468539. The cubic root of 2130378 is about 128.6724458314.

The spelling of 2130378 in words is "two million, one hundred thirty thousand, three hundred seventy-eight".