259870840 has 32 divisors (see below), whose sum is σ = 619105680. Its totient is φ = 97833472.

The previous prime is 259870837. The next prime is 259870867. The reversal of 259870840 is 48078952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190402 + ... + 191761.

Almost surely, 2^259870840 is an apocalyptic number.

259870840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

259870840 is an abundant number, since it is smaller than the sum of its proper divisors (359234840).

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

259870840 is a wasteful number, since it uses less digits than its factorization.

259870840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382191 (or 382187 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 259870840 is about 16120.5099174933. The cubic root of 259870840 is about 638.1447246553.

The spelling of 259870840 in words is "two hundred fifty-nine million, eight hundred seventy thousand, eight hundred forty".