2278748160 has 416 divisors, whose sum is σ = 8751919680. Its totient is φ = 559153152.

The previous prime is 2278748123. The next prime is 2278748179. The reversal of 2278748160 is 618478722.

It is a tau number, because it is divible by the number of its divisors (416).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 7188322 + ... + 7188638.

Almost surely, 2^2278748160 is an apocalyptic number.

2278748160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2278748160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4375959840).

2278748160 is an abundant number, since it is smaller than the sum of its proper divisors (6473171520).

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

2278748160 is a wasteful number, since it uses less digits than its factorization.

2278748160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 2278748160 is about 47736.2352935378. The cubic root of 2278748160 is about 1315.9279469547.

The spelling of 2278748160 in words is "two billion, two hundred seventy-eight million, seven hundred forty-eight thousand, one hundred sixty".