394940700 has 432 divisors, whose sum is σ = 1592398080. Its totient is φ = 79488000.

The previous prime is 394940653. The next prime is 394940717. The reversal of 394940700 is 7049493.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2841231 + ... + 2841369.

Almost surely, 2^394940700 is an apocalyptic number.

394940700 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 394940700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796199040).

394940700 is an abundant number, since it is smaller than the sum of its proper divisors (1197457380).

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

394940700 is a wasteful number, since it uses less digits than its factorization.

394940700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 394940700 is about 19873.1150049508. The cubic root of 394940700 is about 733.6866731583.

The spelling of 394940700 in words is "three hundred ninety-four million, nine hundred forty thousand, seven hundred".