1258395946 has 16 divisors (see below), whose sum is σ = 1935689184. Its totient is φ = 613229904.

The previous prime is 1258395917. The next prime is 1258395949. The reversal of 1258395946 is 6495938521.

It is a junction number, because it is equal to n+sod(n) for n = 1258395893 and 1258395902.

It is not an unprimeable number, because it can be changed into a prime (1258395949) 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, 24496 + ... + 55828.

It is an arithmetic number, because the mean of its divisors is an integer number (120980574).

Almost surely, 2^1258395946 is an apocalyptic number.

1258395946 is a deficient number, since it is larger than the sum of its proper divisors (677293238).

1258395946 is a wasteful number, since it uses less digits than its factorization.

1258395946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31845.

The product of its digits is 2332800, while the sum is 52.

The square root of 1258395946 is about 35473.8769519205. The cubic root of 1258395946 is about 1079.6237675550.

The spelling of 1258395946 in words is "one billion, two hundred fifty-eight million, three hundred ninety-five thousand, nine hundred forty-six".