398470092 has 48 divisors (see below), whose sum is σ = 970431840. Its totient is φ = 127095808.

The previous prime is 398470081. The next prime is 398470097. The reversal of 398470092 is 290074893.

It is not an unprimeable number, because it can be changed into a prime (398470097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34258 + ... + 44390.

It is an arithmetic number, because the mean of its divisors is an integer number (20217330).

Almost surely, 2^398470092 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 398470092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485215920).

398470092 is an abundant number, since it is smaller than the sum of its proper divisors (571961748).

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

398470092 is a wasteful number, since it uses less digits than its factorization.

398470092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10282 (or 10280 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 398470092 is about 19961.7156577284. The cubic root of 398470092 is about 735.8657280064.

The spelling of 398470092 in words is "three hundred ninety-eight million, four hundred seventy thousand, ninety-two".