2404278 has 12 divisors (see below), whose sum is σ = 5209308. Its totient is φ = 801420.

The previous prime is 2404253. The next prime is 2404289. The reversal of 2404278 is 8724042.

It is an Ulam number.

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 5 ways as a sum of consecutive naturals, for example, 66768 + ... + 66803.

It is an arithmetic number, because the mean of its divisors is an integer number (434109).

2^2404278 is an apocalyptic number.

2404278 is an abundant number, since it is smaller than the sum of its proper divisors (2805030).

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

2404278 is a wasteful number, since it uses less digits than its factorization.

2404278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133579 (or 133576 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2404278 is about 1550.5734423109. The cubic root of 2404278 is about 133.9660937456.

The spelling of 2404278 in words is "two million, four hundred four thousand, two hundred seventy-eight".