278488048 has 80 divisors (see below), whose sum is σ = 586587456. Its totient is φ = 127733760.

The previous prime is 278488043. The next prime is 278488051. The reversal of 278488048 is 840884872.

It is a junction number, because it is equal to n+sod(n) for n = 278487992 and 278488010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278488043) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1538518 + ... + 1538698.

Almost surely, 2^278488048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278488048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293293728).

278488048 is an abundant number, since it is smaller than the sum of its proper divisors (308099408).

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

278488048 is a wasteful number, since it uses less digits than its factorization.

278488048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 49.

The square root of 278488048 is about 16687.9611696576. The cubic root of 278488048 is about 653.0335896519.

The spelling of 278488048 in words is "two hundred seventy-eight million, four hundred eighty-eight thousand, forty-eight".