394729610 has 16 divisors (see below), whose sum is σ = 775105632. Its totient is φ = 143538000.

The previous prime is 394729609. The next prime is 394729631. The reversal of 394729610 is 16927493.

It is a super-2 number, since 2×394729610² = 311622930021504200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1794116 + ... + 1794335.

It is an arithmetic number, because the mean of its divisors is an integer number (48444102).

Almost surely, 2^394729610 is an apocalyptic number.

394729610 is a deficient number, since it is larger than the sum of its proper divisors (380376022).

394729610 is a wasteful number, since it uses less digits than its factorization.

394729610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3588469.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 394729610 is about 19867.8033511508. The cubic root of 394729610 is about 733.5559349482. Note that the first 3 decimals are identical.

The spelling of 394729610 in words is "three hundred ninety-four million, seven hundred twenty-nine thousand, six hundred ten".