458440394 has 16 divisors (see below), whose sum is σ = 730192968. Its totient is φ = 215119872.

The previous prime is 458440387. The next prime is 458440421. The reversal of 458440394 is 493044854.

It can be written as a sum of positive squares in 4 ways, for example, as 397803025 + 60637369 = 19945^2 + 7787^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7097 + ... + 31100.

Almost surely, 2^458440394 is an apocalyptic number.

458440394 is a deficient number, since it is larger than the sum of its proper divisors (271752574).

458440394 is a wasteful number, since it uses less digits than its factorization.

458440394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38569.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 458440394 is about 21411.2212169227. The cubic root of 458440394 is about 771.0708628694.

The spelling of 458440394 in words is "four hundred fifty-eight million, four hundred forty thousand, three hundred ninety-four".