399682254 has 8 divisors (see below), whose sum is σ = 799364520. Its totient is φ = 133227416.

The previous prime is 399682253. The next prime is 399682259. The reversal of 399682254 is 452286993.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

399682254 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399682253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33306849 + ... + 33306860.

It is an arithmetic number, because the mean of its divisors is an integer number (99920565).

Almost surely, 2^399682254 is an apocalyptic number.

399682254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

399682254 is a wasteful number, since it uses less digits than its factorization.

399682254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66613714.

The product of its digits is 933120, while the sum is 48.

The square root of 399682254 is about 19992.0547718337. The cubic root of 399682254 is about 736.6111503336.

The spelling of 399682254 in words is "three hundred ninety-nine million, six hundred eighty-two thousand, two hundred fifty-four".