258430399 has 8 divisors (see below), whose sum is σ = 261660672. Its totient is φ = 255214200.

The previous prime is 258430357. The next prime is 258430423. The reversal of 258430399 is 993034852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 258430399 - 2¹⁹ = 257906111 is a prime.

It is a super-2 number, since 2×258430399² = 133572542254598402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258430499) 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, 36174 + ... + 42724.

It is an arithmetic number, because the mean of its divisors is an integer number (32707584).

Almost surely, 2^258430399 is an apocalyptic number.

258430399 is a deficient number, since it is larger than the sum of its proper divisors (3230273).

258430399 is a wasteful number, since it uses less digits than its factorization.

258430399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7037.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 258430399 is about 16075.7705569593. The cubic root of 258430399 is about 636.9634795916.

The spelling of 258430399 in words is "two hundred fifty-eight million, four hundred thirty thousand, three hundred ninety-nine".