259896820 has 24 divisors (see below), whose sum is σ = 574509600. Its totient is φ = 98487072.

The previous prime is 259896797. The next prime is 259896823. The reversal of 259896820 is 28698952.

It is a super-2 number, since 2×259896820² = 135092714092224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (259896823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341590 + ... + 342349.

It is an arithmetic number, because the mean of its divisors is an integer number (23937900).

Almost surely, 2^259896820 is an apocalyptic number.

259896820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259896820 is an abundant number, since it is smaller than the sum of its proper divisors (314612780).

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

259896820 is a wasteful number, since it uses less digits than its factorization.

259896820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683967 (or 683965 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 259896820 is about 16121.3157031304. The cubic root of 259896820 is about 638.1659896390.

The spelling of 259896820 in words is "two hundred fifty-nine million, eight hundred ninety-six thousand, eight hundred twenty".