2303478 has 40 divisors (see below), whose sum is σ = 5270760. Its totient is φ = 751680.

The previous prime is 2303471. The next prime is 2303489. The reversal of 2303478 is 8743032.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303471) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9438 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (131769).

2^2303478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2303478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2635380).

2303478 is an abundant number, since it is smaller than the sum of its proper divisors (2967282).

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

2303478 is a wasteful number, since it uses less digits than its factorization.

2303478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2303478 is about 1517.7213182927. The cubic root of 2303478 is about 132.0671146305.

The spelling of 2303478 in words is "two million, three hundred three thousand, four hundred seventy-eight".