2478648 has 32 divisors (see below), whose sum is σ = 6249600. Its totient is φ = 819168.

The previous prime is 2478643. The next prime is 2478653. The reversal of 2478648 is 8468742.

It is an interprime number because it is at equal distance from previous prime (2478643) and next prime (2478653).

It is a super-2 number, since 2×2478648² = 12287391815808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965 + ... + 3707.

It is an arithmetic number, because the mean of its divisors is an integer number (195300).

2^2478648 is an apocalyptic number.

It is an amenable number.

2478648 is an abundant number, since it is smaller than the sum of its proper divisors (3770952).

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

2478648 is a wasteful number, since it uses less digits than its factorization.

2478648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891 (or 887 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 2478648 is about 1574.3722558531. The cubic root of 2478648 is about 135.3333872590. Note that the first 4 decimals are identical.

The spelling of 2478648 in words is "two million, four hundred seventy-eight thousand, six hundred forty-eight".