998476540 has 48 divisors (see below), whose sum is σ = 2153475072. Its totient is φ = 388717056.

The previous prime is 998476519. The next prime is 998476547. The reversal of 998476540 is 45674899.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998476547) by changing a digit.

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, 130912 + ... + 138328.

It is an arithmetic number, because the mean of its divisors is an integer number (44864064).

Almost surely, 2^998476540 is an apocalyptic number.

It is an amenable number.

998476540 is an abundant number, since it is smaller than the sum of its proper divisors (1154998532).

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

998476540 is a wasteful number, since it uses less digits than its factorization.

998476540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606 (or 7604 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 998476540 is about 31598.6794027852. The cubic root of 998476540 is about 999.4919219004.

The spelling of 998476540 in words is "nine hundred ninety-eight million, four hundred seventy-six thousand, five hundred forty".