268901649 has 12 divisors (see below), whose sum is σ = 388570000. Its totient is φ = 179195544.

The previous prime is 268901639. The next prime is 268901653. The reversal of 268901649 is 946109862.

It is a happy number.

It is not a de Polignac number, because 268901649 - 2¹⁵ = 268868881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268901609) 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, 27222 + ... + 35760.

Almost surely, 2^268901649 is an apocalyptic number.

It is an amenable number.

268901649 is a deficient number, since it is larger than the sum of its proper divisors (119668351).

268901649 is a wasteful number, since it uses less digits than its factorization.

268901649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12044 (or 12041 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 268901649 is about 16398.2209095987. The cubic root of 268901649 is about 645.4527990545.

The spelling of 268901649 in words is "two hundred sixty-eight million, nine hundred one thousand, six hundred forty-nine".