394575959040 has 176 divisors, whose sum is σ = 1316898442368. Its totient is φ = 100645371904.

The previous prime is 394575958961. The next prime is 394575959077. The reversal of 394575959040 is 40959575493.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205167 + ... + 911726.

Almost surely, 2^394575959040 is an apocalyptic number.

394575959040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394575959040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658449221184).

394575959040 is an abundant number, since it is smaller than the sum of its proper divisors (922322483328).

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

394575959040 is a wasteful number, since it uses less digits than its factorization.

394575959040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116944 (or 1116926 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 60.

The spelling of 394575959040 in words is "three hundred ninety-four billion, five hundred seventy-five million, nine hundred fifty-nine thousand, forty".