998358480 has 160 divisors (see below), whose sum is σ = 3930105600. Its totient is φ = 228192768.

The previous prime is 998358469. The next prime is 998358481. The reversal of 998358480 is 84853899.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998358481) 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, 17895 + ... + 48134.

It is an arithmetic number, because the mean of its divisors is an integer number (24563160).

Almost surely, 2^998358480 is an apocalyptic number.

998358480 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

998358480 is an abundant number, since it is smaller than the sum of its proper divisors (2931747120).

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

998358480 is a wasteful number, since it uses less digits than its factorization.

998358480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66058 (or 66046 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 998358480 is about 31596.8112315151. The cubic root of 998358480 is about 999.4525269947.

The spelling of 998358480 in words is "nine hundred ninety-eight million, three hundred fifty-eight thousand, four hundred eighty".