1258438375 has 8 divisors (see below), whose sum is σ = 1570531248. Its totient is φ = 1006750600.

The previous prime is 1258438369. The next prime is 1258438409. The reversal of 1258438375 is 5738348521.

It is a de Polignac number, because none of the positive numbers 2^k-1258438375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5033629 + ... + 5033878.

It is an arithmetic number, because the mean of its divisors is an integer number (196316406).

Almost surely, 2^1258438375 is an apocalyptic number.

1258438375 is a deficient number, since it is larger than the sum of its proper divisors (312092873).

1258438375 is an equidigital number, since it uses as much as digits as its factorization.

1258438375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10067522 (or 10067512 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The square root of 1258438375 is about 35474.4749784969. The cubic root of 1258438375 is about 1079.6359012140.

The spelling of 1258438375 in words is "one billion, two hundred fifty-eight million, four hundred thirty-eight thousand, three hundred seventy-five".