394719445 has 16 divisors (see below), whose sum is σ = 501644160. Its totient is φ = 297532224.

The previous prime is 394719439. The next prime is 394719463. The reversal of 394719445 is 544917493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394719445 is a prime.

It is a super-2 number, since 2×394719445² = 311606880522216050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 394719395 and 394719404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17910 + ... + 33319.

It is an arithmetic number, because the mean of its divisors is an integer number (31352760).

Almost surely, 2^394719445 is an apocalyptic number.

It is an amenable number.

394719445 is a deficient number, since it is larger than the sum of its proper divisors (106924715).

394719445 is a wasteful number, since it uses less digits than its factorization.

394719445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51324.

The product of its digits is 544320, while the sum is 46.

The square root of 394719445 is about 19867.5475336036. The cubic root of 394719445 is about 733.5496380977.

The spelling of 394719445 in words is "three hundred ninety-four million, seven hundred nineteen thousand, four hundred forty-five".