258933340 has 24 divisors (see below), whose sum is σ = 555331392. Its totient is φ = 101369280.

The previous prime is 258933299. The next prime is 258933347. The reversal of 258933340 is 43339852.

It is a self number, because there is not a number n which added to its sum of digits gives 258933340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258933347) 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, 136791 + ... + 138670.

It is an arithmetic number, because the mean of its divisors is an integer number (23138808).

Almost surely, 2^258933340 is an apocalyptic number.

258933340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258933340 is an abundant number, since it is smaller than the sum of its proper divisors (296398052).

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

258933340 is a wasteful number, since it uses less digits than its factorization.

258933340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275517 (or 275515 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 258933340 is about 16091.4057807266. The cubic root of 258933340 is about 637.3764179260.

The spelling of 258933340 in words is "two hundred fifty-eight million, nine hundred thirty-three thousand, three hundred forty".