2478417 has 8 divisors (see below), whose sum is σ = 3478560. Its totient is φ = 1565280.

The previous prime is 2478407. The next prime is 2478449. The reversal of 2478417 is 7148742.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2478417 - 2¹² = 2474321 is a prime.

It is a super-2 number, since 2×2478417² = 12285101651778, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2478407) 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, 21684 + ... + 21797.

It is an arithmetic number, because the mean of its divisors is an integer number (434820).

2^2478417 is an apocalyptic number.

It is an amenable number.

2478417 is a deficient number, since it is larger than the sum of its proper divisors (1000143).

2478417 is a wasteful number, since it uses less digits than its factorization.

2478417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43503.

The product of its digits is 12544, while the sum is 33.

The square root of 2478417 is about 1574.2988915705. The cubic root of 2478417 is about 135.3291829530.

The spelling of 2478417 in words is "two million, four hundred seventy-eight thousand, four hundred seventeen".