398494600 has 192 divisors, whose sum is σ = 1135641600. Its totient is φ = 127008000.

The previous prime is 398494589. The next prime is 398494609. The reversal of 398494600 is 6494893.

It is not an unprimeable number, because it can be changed into a prime (398494609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1888495 + ... + 1888705.

It is an arithmetic number, because the mean of its divisors is an integer number (5914800).

Almost surely, 2^398494600 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 398494600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567820800).

398494600 is an abundant number, since it is smaller than the sum of its proper divisors (737147000).

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

398494600 is a wasteful number, since it uses less digits than its factorization.

398494600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 398494600 is about 19962.3295233798. The cubic root of 398494600 is about 735.8808142307.

The spelling of 398494600 in words is "three hundred ninety-eight million, four hundred ninety-four thousand, six hundred".