2340278 has 4 divisors (see below), whose sum is σ = 3510420. Its totient is φ = 1170138.

The previous prime is 2340277. The next prime is 2340313. The reversal of 2340278 is 8720432.

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

It is a super-2 number, since 2×2340278² = 10953802234568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585068 + ... + 585071.

It is an arithmetic number, because the mean of its divisors is an integer number (877605).

2^2340278 is an apocalyptic number.

2340278 is a deficient number, since it is larger than the sum of its proper divisors (1170142).

2340278 is a wasteful number, since it uses less digits than its factorization.

2340278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170141.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 2340278 is about 1529.7967185218. The cubic root of 2340278 is about 132.7666967223.

The spelling of 2340278 in words is "two million, three hundred forty thousand, two hundred seventy-eight".