268378380 has 48 divisors (see below), whose sum is σ = 834956640. Its totient is φ = 71567424.

The previous prime is 268378361. The next prime is 268378381. The reversal of 268378380 is 83873862.

268378380 is a `hidden beast` number, since 268 + 3 + 7 + 8 + 380 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (268378381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247959 + ... + 249038.

It is an arithmetic number, because the mean of its divisors is an integer number (17394930).

Almost surely, 2^268378380 is an apocalyptic number.

268378380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268378380 is an abundant number, since it is smaller than the sum of its proper divisors (566578260).

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

268378380 is a wasteful number, since it uses less digits than its factorization.

268378380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497015 (or 497007 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 268378380 is about 16382.2580861125. The cubic root of 268378380 is about 645.0338543615.

The spelling of 268378380 in words is "two hundred sixty-eight million, three hundred seventy-eight thousand, three hundred eighty".