2343978 has 96 divisors (see below), whose sum is σ = 6604416. Its totient is φ = 606528.

The previous prime is 2343967. The next prime is 2343989. The reversal of 2343978 is 8793432.

It is an interprime number because it is at equal distance from previous prime (2343967) and next prime (2343989).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44200 + ... + 44252.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

2^2343978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2343978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3302208).

2343978 is an abundant number, since it is smaller than the sum of its proper divisors (4260438).

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

2343978 is a wasteful number, since it uses less digits than its factorization.

2343978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 78 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2343978 is about 1531.0055519168. The cubic root of 2343978 is about 132.8366283176.

It can be divided in two parts, 2343 and 978, that added together give a triangular number (3321 = T₈₁).

The spelling of 2343978 in words is "two million, three hundred forty-three thousand, nine hundred seventy-eight".