278042058 has 80 divisors (see below), whose sum is σ = 715661760. Its totient is φ = 79361856.

The previous prime is 278042047. The next prime is 278042059. The reversal of 278042058 is 850240872.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (278042059) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 275058 + ... + 276066.

It is an arithmetic number, because the mean of its divisors is an integer number (8945772).

Almost surely, 2^278042058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 278042058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357830880).

278042058 is an abundant number, since it is smaller than the sum of its proper divisors (437619702).

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

278042058 is an frugal number, since it uses more digits than its factorization.

278042058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1021 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 278042058 is about 16674.5931884409. The cubic root of 278042058 is about 652.6847990243.

The spelling of 278042058 in words is "two hundred seventy-eight million, forty-two thousand, fifty-eight".