394320454 has 16 divisors (see below), whose sum is σ = 649587600. Its totient is φ = 178032160.

The previous prime is 394320431. The next prime is 394320461. The reversal of 394320454 is 454023493.

It is a happy number.

It is a super-2 number, since 2×394320454² = 310977240885532232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56869 + ... + 63424.

It is an arithmetic number, because the mean of its divisors is an integer number (40599225).

Almost surely, 2^394320454 is an apocalyptic number.

394320454 is a deficient number, since it is larger than the sum of its proper divisors (255267146).

394320454 is a wasteful number, since it uses less digits than its factorization.

394320454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120455.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 394320454 is about 19857.5037202565. The cubic root of 394320454 is about 733.3023921289.

The spelling of 394320454 in words is "three hundred ninety-four million, three hundred twenty thousand, four hundred fifty-four".