268420860 has 36 divisors (see below), whose sum is σ = 814210488. Its totient is φ = 71578848.

The previous prime is 268420811. The next prime is 268420861. The reversal of 268420860 is 68024862.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268420861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 745434 + ... + 745793.

It is an arithmetic number, because the mean of its divisors is an integer number (22616958).

Almost surely, 2^268420860 is an apocalyptic number.

268420860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268420860 is an abundant number, since it is smaller than the sum of its proper divisors (545789628).

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

268420860 is a wasteful number, since it uses less digits than its factorization.

268420860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491242 (or 1491237 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 268420860 is about 16383.5545593745. The cubic root of 268420860 is about 645.0678854094.

The spelling of 268420860 in words is "two hundred sixty-eight million, four hundred twenty thousand, eight hundred sixty".