268220790 has 24 divisors (see below), whose sum is σ = 697374288. Its totient is φ = 71525520.

The previous prime is 268220783. The next prime is 268220791. The reversal of 268220790 is 97022862.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268220791) 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, 1490026 + ... + 1490205.

It is an arithmetic number, because the mean of its divisors is an integer number (29057262).

Almost surely, 2^268220790 is an apocalyptic number.

268220790 is an abundant number, since it is smaller than the sum of its proper divisors (429153498).

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

268220790 is a wasteful number, since it uses less digits than its factorization.

268220790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980244 (or 2980241 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 268220790 is about 16377.4476033355. The cubic root of 268220790 is about 644.9075764452.

The spelling of 268220790 in words is "two hundred sixty-eight million, two hundred twenty thousand, seven hundred ninety".