398346036 has 72 divisors (see below), whose sum is σ = 1026662112. Its totient is φ = 120120000.

The previous prime is 398346031. The next prime is 398346049. The reversal of 398346036 is 630643893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398346031) 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 23 ways as a sum of consecutive naturals, for example, 363906 + ... + 364998.

It is an arithmetic number, because the mean of its divisors is an integer number (14259196).

Almost surely, 2^398346036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398346036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (513331056).

398346036 is an abundant number, since it is smaller than the sum of its proper divisors (628316076).

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

398346036 is a wasteful number, since it uses less digits than its factorization.

398346036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The square root of 398346036 is about 19958.6080676985. The cubic root of 398346036 is about 735.7893541991.

The spelling of 398346036 in words is "three hundred ninety-eight million, three hundred forty-six thousand, thirty-six".