268978224 has 20 divisors (see below), whose sum is σ = 694860536. Its totient is φ = 89659392.

The previous prime is 268978223. The next prime is 268978243. The reversal of 268978224 is 422879862.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 5603713 = 268978224 / (2 + 6 + 8 + 9 + 7 + 8 + 2 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (268978223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2801809 + ... + 2801904.

Almost surely, 2^268978224 is an apocalyptic number.

268978224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

268978224 is an abundant number, since it is smaller than the sum of its proper divisors (425882312).

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

268978224 is a wasteful number, since it uses less digits than its factorization.

268978224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603724 (or 5603718 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 268978224 is about 16400.5556003448. Note that the first 3 decimals coincide. The cubic root of 268978224 is about 645.5140616727.

The spelling of 268978224 in words is "two hundred sixty-eight million, nine hundred seventy-eight thousand, two hundred twenty-four".