2478942 has 24 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 805920.

The previous prime is 2478937. The next prime is 2478953. The reversal of 2478942 is 2498742.

It is a super-2 number, since 2×2478942² = 12290306878728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2478897 and 2478906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942 + ... + 2417.

It is an arithmetic number, because the mean of its divisors is an integer number (229320).

2^2478942 is an apocalyptic number.

2478942 is an abundant number, since it is smaller than the sum of its proper divisors (3024738).

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

2478942 is a wasteful number, since it uses less digits than its factorization.

2478942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408 (or 3405 counting only the distinct ones).

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

The square root of 2478942 is about 1574.4656236323. The cubic root of 2478942 is about 135.3387378160.

The spelling of 2478942 in words is "two million, four hundred seventy-eight thousand, nine hundred forty-two".