2478249 has 16 divisors (see below), whose sum is σ = 3696000. Its totient is φ = 1641168.

The previous prime is 2478241. The next prime is 2478257. The reversal of 2478249 is 9428742.

It is an interprime number because it is at equal distance from previous prime (2478241) and next prime (2478257).

It is not a de Polignac number, because 2478249 - 2³ = 2478241 is a prime.

It is a super-2 number, since 2×2478249² = 12283436212002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6927 + ... + 7275.

It is an arithmetic number, because the mean of its divisors is an integer number (231000).

2^2478249 is an apocalyptic number.

It is an amenable number.

2478249 is a deficient number, since it is larger than the sum of its proper divisors (1217751).

2478249 is a wasteful number, since it uses less digits than its factorization.

2478249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 615 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2478249 is about 1574.2455335811. The cubic root of 2478249 is about 135.3261251119.

The spelling of 2478249 in words is "two million, four hundred seventy-eight thousand, two hundred forty-nine".