394770240 has 112 divisors (see below), whose sum is σ = 1392692160. Its totient is φ = 105269760.

The previous prime is 394770227. The next prime is 394770251. The reversal of 394770240 is 42077493.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 394770195 and 394770204.

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, 14206 + ... + 31485.

Almost surely, 2^394770240 is an apocalyptic number.

394770240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394770240 is an abundant number, since it is smaller than the sum of its proper divisors (997921920).

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

394770240 is a wasteful number, since it uses less digits than its factorization.

394770240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45717 (or 45701 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 394770240 is about 19868.8258334508. The cubic root of 394770240 is about 733.5811026870.

The spelling of 394770240 in words is "three hundred ninety-four million, seven hundred seventy thousand, two hundred forty".