398949046 has 8 divisors (see below), whose sum is σ = 598510080. Its totient is φ = 199445688.

The previous prime is 398949029. The next prime is 398949101. The reversal of 398949046 is 640949893.

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

It is a junction number, because it is equal to n+sod(n) for n = 398948984 and 398949002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14380 + ... + 31696.

It is an arithmetic number, because the mean of its divisors is an integer number (74813760).

Almost surely, 2^398949046 is an apocalyptic number.

398949046 is a deficient number, since it is larger than the sum of its proper divisors (199561034).

398949046 is a wasteful number, since it uses less digits than its factorization.

398949046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28838.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The square root of 398949046 is about 19973.7088694113. The cubic root of 398949046 is about 736.1604424856.

It can be divided in two parts, 3989 and 49046, that added together give a palindrome (53035).

The spelling of 398949046 in words is "three hundred ninety-eight million, nine hundred forty-nine thousand, forty-six".