2179390 has 16 divisors (see below), whose sum is σ = 4007232. Its totient is φ = 853024.

The previous prime is 2179367. The next prime is 2179391. The reversal of 2179390 is 939712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2179391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1849 + ... + 2788.

It is an arithmetic number, because the mean of its divisors is an integer number (250452).

2^2179390 is an apocalyptic number.

2179390 is a deficient number, since it is larger than the sum of its proper divisors (1827842).

2179390 is a wasteful number, since it uses less digits than its factorization.

2179390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2179390 is about 1476.2757195050. The cubic root of 2179390 is about 129.6517305426.

The spelling of 2179390 in words is "two million, one hundred seventy-nine thousand, three hundred ninety".