268435490 has 8 divisors (see below), whose sum is σ = 483183900. Its totient is φ = 107374192.

The previous prime is 268435463. The next prime is 268435493. The reversal of 268435490 is 94534862.

It can be written as a sum of positive squares in 2 ways, for example, as 229734649 + 38700841 = 15157^2 + 6221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×268435490² = 144115224583080200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268435493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13421765 + ... + 13421784.

Almost surely, 2^268435490 is an apocalyptic number.

268435490 is a deficient number, since it is larger than the sum of its proper divisors (214748410).

268435490 is a wasteful number, since it uses less digits than its factorization.

268435490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26843556.

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 268435490 is about 16384.0010375976. The cubic root of 268435490 is about 645.0796047814.

The spelling of 268435490 in words is "two hundred sixty-eight million, four hundred thirty-five thousand, four hundred ninety".