264981893 has 24 divisors (see below), whose sum is σ = 308168448. Its totient is φ = 227304000.

The previous prime is 264981889. The next prime is 264981917. The reversal of 264981893 is 398189462.

It is a happy number.

It is not a de Polignac number, because 264981893 - 2² = 264981889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264981823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152930 + ... + 154652.

It is an arithmetic number, because the mean of its divisors is an integer number (12840352).

Almost surely, 2^264981893 is an apocalyptic number.

It is an amenable number.

264981893 is a deficient number, since it is larger than the sum of its proper divisors (43186555).

264981893 is a wasteful number, since it uses less digits than its factorization.

264981893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817 (or 1806 counting only the distinct ones).

The product of its digits is 746496, while the sum is 50.

The square root of 264981893 is about 16278.2644345151. The cubic root of 264981893 is about 642.3011990731.

The spelling of 264981893 in words is "two hundred sixty-four million, nine hundred eighty-one thousand, eight hundred ninety-three".