259925442 has 64 divisors (see below), whose sum is σ = 604108800. Its totient is φ = 73028736.

The previous prime is 259925437. The next prime is 259925473. The reversal of 259925442 is 244529952.

It is a super-2 number, since 2×259925442² = 135122470797790728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 259925394 and 259925403.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1144933 + ... + 1145159.

It is an arithmetic number, because the mean of its divisors is an integer number (9439200).

Almost surely, 2^259925442 is an apocalyptic number.

259925442 is an abundant number, since it is smaller than the sum of its proper divisors (344183358).

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

259925442 is a wasteful number, since it uses less digits than its factorization.

259925442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575.

The product of its digits is 259200, while the sum is 42.

The square root of 259925442 is about 16122.2033853937. The cubic root of 259925442 is about 638.1894154950.

The spelling of 259925442 in words is "two hundred fifty-nine million, nine hundred twenty-five thousand, four hundred forty-two".