998158470 has 32 divisors (see below), whose sum is σ = 2429326080. Its totient is φ = 262426080.

The previous prime is 998158423. The next prime is 998158501. The reversal of 998158470 is 74851899.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232180 + ... + 236439.

It is an arithmetic number, because the mean of its divisors is an integer number (75916440).

Almost surely, 2^998158470 is an apocalyptic number.

998158470 is an abundant number, since it is smaller than the sum of its proper divisors (1431167610).

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

998158470 is a wasteful number, since it uses less digits than its factorization.

998158470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468700.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 998158470 is about 31593.6460384046. The cubic root of 998158470 is about 999.3857794771.

The spelling of 998158470 in words is "nine hundred ninety-eight million, one hundred fifty-eight thousand, four hundred seventy".