398832562 has 4 divisors (see below), whose sum is σ = 598248846. Its totient is φ = 199416280.

The previous prime is 398832559. The next prime is 398832569. The reversal of 398832562 is 265238893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 265238893 = 359 ⋅738827.

It can be written as a sum of positive squares in only one way, i.e., 312547041 + 86285521 = 17679^2 + 9289^2 .

It is a super-2 number, since 2×398832562² = 318134825022967688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (398832569) 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 as a sum of consecutive naturals, namely, 99708139 + ... + 99708142.

Almost surely, 2^398832562 is an apocalyptic number.

398832562 is a deficient number, since it is larger than the sum of its proper divisors (199416284).

398832562 is a wasteful number, since it uses less digits than its factorization.

398832562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199416283.

The product of its digits is 622080, while the sum is 46.

The square root of 398832562 is about 19970.7927233748. The cubic root of 398832562 is about 736.0887881720.

The spelling of 398832562 in words is "three hundred ninety-eight million, eight hundred thirty-two thousand, five hundred sixty-two".