398058746 has 12 divisors (see below), whose sum is σ = 624178842. Its totient is φ = 190375416.

The previous prime is 398058743. The next prime is 398058751. The reversal of 398058746 is 647850893.

It can be written as a sum of positive squares in only one way, i.e., 233937025 + 164121721 = 15295^2 + 12811^2 .

It is a junction number, because it is equal to n+sod(n) for n = 398058694 and 398058703.

It is not an unprimeable number, because it can be changed into a prime (398058743) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 187061 + ... + 189176.

Almost surely, 2^398058746 is an apocalyptic number.

398058746 is a deficient number, since it is larger than the sum of its proper divisors (226120096).

398058746 is a wasteful number, since it uses less digits than its factorization.

398058746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376285 (or 376262 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 398058746 is about 19951.4096243849. The cubic root of 398058746 is about 735.6124261497.

It can be divided in two parts, 3980 and 58746, that added together give a palindrome (62726).

The spelling of 398058746 in words is "three hundred ninety-eight million, fifty-eight thousand, seven hundred forty-six".