398788110 has 160 divisors (see below), whose sum is σ = 1246652352. Its totient is φ = 89579520.

The previous prime is 398788073. The next prime is 398788111. The reversal of 398788110 is 11887893.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398788111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 345294 + ... + 346446.

Almost surely, 2^398788110 is an apocalyptic number.

398788110 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 398788110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623326176).

398788110 is an abundant number, since it is smaller than the sum of its proper divisors (847864242).

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

398788110 is a wasteful number, since it uses less digits than its factorization.

398788110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The square root of 398788110 is about 19969.6797670869. The cubic root of 398788110 is about 736.0614401588.

The spelling of 398788110 in words is "three hundred ninety-eight million, seven hundred eighty-eight thousand, one hundred ten".