2748478 has 4 divisors (see below), whose sum is σ = 4122720. Its totient is φ = 1374238.

The previous prime is 2748469. The next prime is 2748497. The reversal of 2748478 is 8748472.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2748478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687118 + ... + 687121.

It is an arithmetic number, because the mean of its divisors is an integer number (1030680).

2^2748478 is an apocalyptic number.

2748478 is a deficient number, since it is larger than the sum of its proper divisors (1374242).

2748478 is a wasteful number, since it uses less digits than its factorization.

2748478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374241.

The product of its digits is 100352, while the sum is 40.

The square root of 2748478 is about 1657.8534313986. The cubic root of 2748478 is about 140.0761150729.

The spelling of 2748478 in words is "two million, seven hundred forty-eight thousand, four hundred seventy-eight".