268694920 has 32 divisors (see below), whose sum is σ = 651069720. Its totient is φ = 99210240.

The previous prime is 268694893. The next prime is 268694927. The reversal of 268694920 is 29496862.

It can be written as a sum of positive squares in 4 ways, for example, as 143568324 + 125126596 = 11982^2 + 11186^2 .

It is not an unprimeable number, because it can be changed into a prime (268694927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257841 + ... + 258880.

Almost surely, 2^268694920 is an apocalyptic number.

268694920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268694920 is an abundant number, since it is smaller than the sum of its proper divisors (382374800).

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

268694920 is a wasteful number, since it uses less digits than its factorization.

268694920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516745 (or 516741 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 268694920 is about 16391.9163004208. The cubic root of 268694920 is about 645.2873506821.

The spelling of 268694920 in words is "two hundred sixty-eight million, six hundred ninety-four thousand, nine hundred twenty".