278079048 has 128 divisors (see below), whose sum is σ = 838252800. Its totient is φ = 84907008.

The previous prime is 278079031. The next prime is 278079059. The reversal of 278079048 is 840970872.

It is a nialpdrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 278078994 and 278079012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468640 + ... + 469232.

It is an arithmetic number, because the mean of its divisors is an integer number (6548850).

Almost surely, 2^278079048 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 278079048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (419126400).

278079048 is an abundant number, since it is smaller than the sum of its proper divisors (560173752).

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

278079048 is a wasteful number, since it uses less digits than its factorization.

278079048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 278079048 is about 16675.7023240402. The cubic root of 278079048 is about 652.7137415763.

The spelling of 278079048 in words is "two hundred seventy-eight million, seventy-nine thousand, forty-eight".