278220096 has 560 divisors, whose sum is σ = 1115275392. Its totient is φ = 66355200.

The previous prime is 278220049. The next prime is 278220143. The reversal of 278220096 is 690022872.

It is an interprime number because it is at equal distance from previous prime (278220049) and next prime (278220143).

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

It is a self number, because there is not a number n which added to its sum of digits gives 278220096.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6785836 + ... + 6785876.

Almost surely, 2^278220096 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 278220096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557637696).

278220096 is an abundant number, since it is smaller than the sum of its proper divisors (837055296).

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

278220096 is a wasteful number, since it uses less digits than its factorization.

278220096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 278220096 is about 16679.9309351088. The cubic root of 278220096 is about 652.8240799941.

The spelling of 278220096 in words is "two hundred seventy-eight million, two hundred twenty thousand, ninety-six".