2392278 has 48 divisors (see below), whose sum is σ = 5690880. Its totient is φ = 668304.

The previous prime is 2392267. The next prime is 2392279. The reversal of 2392278 is 8722932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2392279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23175 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

2^2392278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2392278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2845440).

2392278 is an abundant number, since it is smaller than the sum of its proper divisors (3298602).

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

2392278 is a wasteful number, since it uses less digits than its factorization.

2392278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 194 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 2392278 is about 1546.6990657526. The cubic root of 2392278 is about 133.7428423689.

The spelling of 2392278 in words is "two million, three hundred ninety-two thousand, two hundred seventy-eight".