998407452 has 96 divisors (see below), whose sum is σ = 2770862080. Its totient is φ = 273792960.

The previous prime is 998407439. The next prime is 998407453. The reversal of 998407452 is 254704899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998407453) 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, 329199 + ... + 332217.

Almost surely, 2^998407452 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 998407452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385431040).

998407452 is an abundant number, since it is smaller than the sum of its proper divisors (1772454628).

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

998407452 is a wasteful number, since it uses less digits than its factorization.

998407452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191 (or 3189 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 998407452 is about 31597.5861736304. The cubic root of 998407452 is about 999.4688686161.

The spelling of 998407452 in words is "nine hundred ninety-eight million, four hundred seven thousand, four hundred fifty-two".