398489088 has 80 divisors (see below), whose sum is σ = 1079256816. Its totient is φ = 130621440.

The previous prime is 398489081. The next prime is 398489101. The reversal of 398489088 is 880984893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398489081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91570 + ... + 95822.

Almost surely, 2^398489088 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 398489088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539628408).

398489088 is an abundant number, since it is smaller than the sum of its proper divisors (680767728).

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

398489088 is an equidigital number, since it uses as much as digits as its factorization.

398489088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4319 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 57.

The square root of 398489088 is about 19962.1914628630. The cubic root of 398489088 is about 735.8774212999.

The spelling of 398489088 in words is "three hundred ninety-eight million, four hundred eighty-nine thousand, eighty-eight".