399354094 has 4 divisors (see below), whose sum is σ = 599031144. Its totient is φ = 199677046.

The previous prime is 399354077. The next prime is 399354097. The reversal of 399354094 is 490453993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 490453993 = 1069 ⋅458797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399354097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99838522 + ... + 99838525.

It is an arithmetic number, because the mean of its divisors is an integer number (149757786).

Almost surely, 2^399354094 is an apocalyptic number.

399354094 is a deficient number, since it is larger than the sum of its proper divisors (199677050).

399354094 is a wasteful number, since it uses less digits than its factorization.

399354094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199677049.

The product of its (nonzero) digits is 524880, while the sum is 46.

The square root of 399354094 is about 19983.8458260666. The cubic root of 399354094 is about 736.4094963951.

The spelling of 399354094 in words is "three hundred ninety-nine million, three hundred fifty-four thousand, ninety-four".