394444444461 has 16 divisors (see below), whose sum is σ = 553631678400. Its totient is φ = 249111358848.

The previous prime is 394444444453. The next prime is 394444444463. The reversal of 394444444461 is 164444444493.

It is not a de Polignac number, because 394444444461 - 2³ = 394444444453 is a prime.

It is a super-2 number, since 2×394444444461² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394444444463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192075 + ... + 1486583.

It is an arithmetic number, because the mean of its divisors is an integer number (34601979900).

Almost surely, 2^394444444461 is an apocalyptic number.

It is an amenable number.

394444444461 is a deficient number, since it is larger than the sum of its proper divisors (159187233939).

394444444461 is a wasteful number, since it uses less digits than its factorization.

394444444461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318028.

The product of its digits is 10616832, while the sum is 51.

The spelling of 394444444461 in words is "three hundred ninety-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred sixty-one".