398599292 has 96 divisors (see below), whose sum is σ = 915812352. Its totient is φ = 147476736.

The previous prime is 398599291. The next prime is 398599303. The reversal of 398599292 is 292995893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398599291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392978 + ... + 393990.

It is an arithmetic number, because the mean of its divisors is an integer number (9539712).

Almost surely, 2^398599292 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 398599292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (457906176).

398599292 is an abundant number, since it is smaller than the sum of its proper divisors (517213060).

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

398599292 is a wasteful number, since it uses less digits than its factorization.

398599292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1105 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 56.

The square root of 398599292 is about 19964.9515902243. The cubic root of 398599292 is about 735.9452518153.

The spelling of 398599292 in words is "three hundred ninety-eight million, five hundred ninety-nine thousand, two hundred ninety-two".