2258401394 has 8 divisors (see below), whose sum is σ = 3388011948. Its totient is φ = 1129064080.

The previous prime is 2258401393. The next prime is 2258401403. The reversal of 2258401394 is 4931048522.

It can be written as a sum of positive squares in 2 ways, for example, as 2207778169 + 50623225 = 46987^2 + 7115^2 .

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

It is a super-2 number, since 2×2258401394² = 10200753712842286472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2258401393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46217 + ... + 81564.

Almost surely, 2^2258401394 is an apocalyptic number.

2258401394 is a deficient number, since it is larger than the sum of its proper divisors (1129610554).

2258401394 is a wasteful number, since it uses less digits than its factorization.

2258401394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136620.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2258401394 is about 47522.6408567537. The cubic root of 2258401394 is about 1311.9996254863. Note that the first 3 decimals are identical.

The spelling of 2258401394 in words is "two billion, two hundred fifty-eight million, four hundred one thousand, three hundred ninety-four".