394170134370 has 64 divisors (see below), whose sum is σ = 950461382016. Its totient is φ = 104617533440.

The previous prime is 394170134357. The next prime is 394170134377. The reversal of 394170134370 is 73431071493.

It is a super-3 number, since 3×394170134370³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (394170134377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30509152 + ... + 30522068.

It is an arithmetic number, because the mean of its divisors is an integer number (14850959094).

Almost surely, 2^394170134370 is an apocalyptic number.

394170134370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

394170134370 is an abundant number, since it is smaller than the sum of its proper divisors (556291247646).

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

394170134370 is a wasteful number, since it uses less digits than its factorization.

394170134370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17635.

The product of its (nonzero) digits is 190512, while the sum is 42.

The spelling of 394170134370 in words is "three hundred ninety-four billion, one hundred seventy million, one hundred thirty-four thousand, three hundred seventy".