399458054 has 8 divisors (see below), whose sum is σ = 599841840. Its totient is φ = 199510776.

The previous prime is 399458047. The next prime is 399458057. The reversal of 399458054 is 450854993.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399458057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106829 + ... + 110504.

It is an arithmetic number, because the mean of its divisors is an integer number (74980230).

Almost surely, 2^399458054 is an apocalyptic number.

399458054 is a deficient number, since it is larger than the sum of its proper divisors (200383786).

399458054 is a wasteful number, since it uses less digits than its factorization.

399458054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218254.

The product of its (nonzero) digits is 777600, while the sum is 47.

The square root of 399458054 is about 19986.4467577406. The cubic root of 399458054 is about 736.4733916452.

The spelling of 399458054 in words is "three hundred ninety-nine million, four hundred fifty-eight thousand, fifty-four".