394353900 has 72 divisors (see below), whose sum is σ = 1267783440. Its totient is φ = 105160320.

The previous prime is 394353899. The next prime is 394353901. The reversal of 394353900 is 9353493.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (394353899) and next prime (394353901).

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

It is not an unprimeable number, because it can be changed into a prime (394353901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70329 + ... + 75728.

Almost surely, 2^394353900 is an apocalyptic number.

394353900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394353900 is an abundant number, since it is smaller than the sum of its proper divisors (873429540).

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

394353900 is a wasteful number, since it uses less digits than its factorization.

394353900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146080 (or 146067 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 394353900 is about 19858.3458525628. The cubic root of 394353900 is about 733.3231242840.

The spelling of 394353900 in words is "three hundred ninety-four million, three hundred fifty-three thousand, nine hundred".