268420554 has 20 divisors (see below), whose sum is σ = 601461234. Its totient is φ = 89473464.

The previous prime is 268420547. The next prime is 268420573. The reversal of 268420554 is 455024862.

It is a happy number.

268420554 is a `hidden beast` number, since 2 + 6 + 84 + 20 + 554 = 666.

It can be written as a sum of positive squares in only one way, i.e., 260984025 + 7436529 = 16155^2 + 2727^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 828297 + ... + 828620.

Almost surely, 2^268420554 is an apocalyptic number.

268420554 is an abundant number, since it is smaller than the sum of its proper divisors (333040680).

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

268420554 is a wasteful number, since it uses less digits than its factorization.

268420554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656931 (or 1656922 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 268420554 is about 16383.5452207390. The cubic root of 268420554 is about 645.0676402834.

The spelling of 268420554 in words is "two hundred sixty-eight million, four hundred twenty thousand, five hundred fifty-four".