394782630 has 64 divisors (see below), whose sum is σ = 1035514368. Its totient is φ = 95528960.

The previous prime is 394782617. The next prime is 394782673. The reversal of 394782630 is 36287493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323782 + ... + 324998.

It is an arithmetic number, because the mean of its divisors is an integer number (16179912).

Almost surely, 2^394782630 is an apocalyptic number.

394782630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

394782630 is an abundant number, since it is smaller than the sum of its proper divisors (640731738).

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

394782630 is a wasteful number, since it uses less digits than its factorization.

394782630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 394782630 is about 19869.1376259766. The cubic root of 394782630 is about 733.5887771719.

The spelling of 394782630 in words is "three hundred ninety-four million, seven hundred eighty-two thousand, six hundred thirty".