398803236 has 96 divisors (see below), whose sum is σ = 1062821760. Its totient is φ = 115375104.

The previous prime is 398803211. The next prime is 398803253. The reversal of 398803236 is 632308893.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464920 + ... + 465776.

It is an arithmetic number, because the mean of its divisors is an integer number (11071060).

Almost surely, 2^398803236 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 398803236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531410880).

398803236 is an abundant number, since it is smaller than the sum of its proper divisors (664018524).

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

398803236 is a wasteful number, since it uses less digits than its factorization.

398803236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 398803236 is about 19970.0584876459. The cubic root of 398803236 is about 736.0707462910.

The spelling of 398803236 in words is "three hundred ninety-eight million, eight hundred three thousand, two hundred thirty-six".