278430048 has 120 divisors (see below), whose sum is σ = 881950608. Its totient is φ = 85660416.

The previous prime is 278430023. The next prime is 278430077. The reversal of 278430048 is 840034872.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 278429994 and 278430021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29565 + ... + 37827.

Almost surely, 2^278430048 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 278430048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440975304).

278430048 is an abundant number, since it is smaller than the sum of its proper divisors (603520560).

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

278430048 is a wasteful number, since it uses less digits than its factorization.

278430048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8298 (or 8281 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 278430048 is about 16686.2232994767. The cubic root of 278430048 is about 652.9882512874.

The spelling of 278430048 in words is "two hundred seventy-eight million, four hundred thirty thousand, forty-eight".