2478464 has 48 divisors (see below), whose sum is σ = 5323380. Its totient is φ = 1148928.

The previous prime is 2478449. The next prime is 2478473. The reversal of 2478464 is 4648742.

It is a super-2 number, since 2×2478464² = 12285567598592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36959 + ... + 37025.

2^2478464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2478464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661690).

2478464 is an abundant number, since it is smaller than the sum of its proper divisors (2844916).

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

2478464 is an equidigital number, since it uses as much as digits as its factorization.

2478464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 86 counting only the distinct ones).

The product of its digits is 43008, while the sum is 35.

The square root of 2478464 is about 1574.3138187795. The cubic root of 2478464 is about 135.3300383957.

The spelling of 2478464 in words is "two million, four hundred seventy-eight thousand, four hundred sixty-four".