394334999370 has 192 divisors, whose sum is σ = 1121405070240. Its totient is φ = 95558639616.

The previous prime is 394334999353. The next prime is 394334999393. The reversal of 394334999370 is 73999433493.

394334999370 is a `hidden beast` number, since 3 + 9 + 433 + 49 + 9 + 93 + 70 = 666.

It can be written as a sum of positive squares in 16 ways, for example, as 3943714401 + 390391284969 = 62799^2 + 624813^2 .

It is a junction number, because it is equal to n+sod(n) for n = 394334999298 and 394334999307.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 24254164 + ... + 24270416.

Almost surely, 2^394334999370 is an apocalyptic number.

394334999370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394334999370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560702535120).

394334999370 is an abundant number, since it is smaller than the sum of its proper divisors (727070070870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394334999370 is a wasteful number, since it uses less digits than its factorization.

394334999370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16601 (or 16598 counting only the distinct ones).

The product of its (nonzero) digits is 59521392, while the sum is 63.

The spelling of 394334999370 in words is "three hundred ninety-four billion, three hundred thirty-four million, nine hundred ninety-nine thousand, three hundred seventy".