2321378 has 4 divisors (see below), whose sum is σ = 3482070. Its totient is φ = 1160688.

The previous prime is 2321369. The next prime is 2321381. The reversal of 2321378 is 8731232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2319529 + 1849 = 1523^2 + 43^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580343 + ... + 580346.

2^2321378 is an apocalyptic number.

2321378 is a deficient number, since it is larger than the sum of its proper divisors (1160692).

2321378 is a wasteful number, since it uses less digits than its factorization.

2321378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160691.

The product of its digits is 2016, while the sum is 26.

The square root of 2321378 is about 1523.6069046838. The cubic root of 2321378 is about 132.4083239109.

The spelling of 2321378 in words is "two million, three hundred twenty-one thousand, three hundred seventy-eight".