278874043 has 12 divisors (see below), whose sum is σ = 325775520. Its totient is φ = 238024752.

The previous prime is 278874019. The next prime is 278874059. The reversal of 278874043 is 340478872.

It is not a de Polignac number, because 278874043 - 2²⁵ = 245319611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (278874073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196 + ... + 23617.

It is an arithmetic number, because the mean of its divisors is an integer number (27147960).

Almost surely, 2^278874043 is an apocalyptic number.

278874043 is a deficient number, since it is larger than the sum of its proper divisors (46901477).

278874043 is a wasteful number, since it uses less digits than its factorization.

278874043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24066 (or 24059 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 278874043 is about 16699.5222386750. The cubic root of 278874043 is about 653.3351601423.

The spelling of 278874043 in words is "two hundred seventy-eight million, eight hundred seventy-four thousand, forty-three".