258649072 has 20 divisors (see below), whose sum is σ = 546690456. Its totient is φ = 117567680.

The previous prime is 258649051. The next prime is 258649117. The reversal of 258649072 is 270946852.

It is a super-2 number, since 2×258649072² = 133798684892922368, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 734623 + ... + 734974.

Almost surely, 2^258649072 is an apocalyptic number.

258649072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

258649072 is an abundant number, since it is smaller than the sum of its proper divisors (288041384).

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

258649072 is a wasteful number, since it uses less digits than its factorization.

258649072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469616 (or 1469610 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 258649072 is about 16082.5704413194. The cubic root of 258649072 is about 637.1430862321.

The spelling of 258649072 in words is "two hundred fifty-eight million, six hundred forty-nine thousand, seventy-two".