2289378 has 48 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 602784.

The previous prime is 2289359. The next prime is 2289379. The reversal of 2289378 is 8739822.

2289378 is nontrivially palindromic in base 4.

2289378 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

2289378 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (2289379) 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, 3523 + ... + 4121.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^2289378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2289378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2872800).

2289378 is an abundant number, since it is smaller than the sum of its proper divisors (3456222).

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

2289378 is a wasteful number, since it uses less digits than its factorization.

2289378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 624 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 2289378 is about 1513.0690665003. The cubic root of 2289378 is about 131.7970941368.

The spelling of 2289378 in words is "two million, two hundred eighty-nine thousand, three hundred seventy-eight".