258460399 has 2 divisors, whose sum is σ = 258460400. Its totient is φ = 258460398.

The previous prime is 258460393. The next prime is 258460409. The reversal of 258460399 is 993064852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258460399 - 2²³ = 250071791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258460393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129230199 + 129230200.

It is an arithmetic number, because the mean of its divisors is an integer number (129230200).

Almost surely, 2^258460399 is an apocalyptic number.

258460399 is a deficient number, since it is larger than the sum of its proper divisors (1).

258460399 is an equidigital number, since it uses as much as digits as its factorization.

258460399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 258460399 is about 16076.7036111263. The cubic root of 258460399 is about 636.9881260278.

The spelling of 258460399 in words is "two hundred fifty-eight million, four hundred sixty thousand, three hundred ninety-nine".