398329332 has 24 divisors (see below), whose sum is σ = 930006336. Its totient is φ = 132694848.

The previous prime is 398329331. The next prime is 398329333. The reversal of 398329332 is 233923893.

It is an interprime number because it is at equal distance from previous prime (398329331) and next prime (398329333).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398329331) 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 in 7 ways as a sum of consecutive naturals, for example, 12088 + ... + 30704.

It is an arithmetic number, because the mean of its divisors is an integer number (38750264).

Almost surely, 2^398329332 is an apocalyptic number.

It is an amenable number.

398329332 is an abundant number, since it is smaller than the sum of its proper divisors (531677004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

398329332 is a wasteful number, since it uses less digits than its factorization.

398329332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20407 (or 20405 counting only the distinct ones).

The product of its digits is 209952, while the sum is 42.

The square root of 398329332 is about 19958.1895972556. The cubic root of 398329332 is about 735.7790693412.

The spelling of 398329332 in words is "three hundred ninety-eight million, three hundred twenty-nine thousand, three hundred thirty-two".