398203560 has 128 divisors (see below), whose sum is σ = 1332777600. Its totient is φ = 105753600.

The previous prime is 398203549. The next prime is 398203573. The reversal of 398203560 is 65302893.

398203560 is a `hidden beast` number, since 3 + 98 + 2 + 0 + 3 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 330960 + ... + 332160.

It is an arithmetic number, because the mean of its divisors is an integer number (10412325).

Almost surely, 2^398203560 is an apocalyptic number.

398203560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398203560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666388800).

398203560 is an abundant number, since it is smaller than the sum of its proper divisors (934574040).

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

398203560 is a wasteful number, since it uses less digits than its factorization.

398203560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1518 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 398203560 is about 19955.0384615014. The cubic root of 398203560 is about 735.7016207417.

The spelling of 398203560 in words is "three hundred ninety-eight million, two hundred three thousand, five hundred sixty".