259421972 has 48 divisors (see below), whose sum is σ = 509040000. Its totient is φ = 114960384.

The previous prime is 259421957. The next prime is 259422019. The reversal of 259421972 is 279124952.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256604 + ... + 257612.

It is an arithmetic number, because the mean of its divisors is an integer number (10605000).

Almost surely, 2^259421972 is an apocalyptic number.

It is an amenable number.

259421972 is a deficient number, since it is larger than the sum of its proper divisors (249618028).

259421972 is a wasteful number, since it uses less digits than its factorization.

259421972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248 (or 1246 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 259421972 is about 16106.5816360890. The cubic root of 259421972 is about 637.7770960975. Note that the first 3 decimals are identical.

The spelling of 259421972 in words is "two hundred fifty-nine million, four hundred twenty-one thousand, nine hundred seventy-two".