998942461 has 16 divisors (see below), whose sum is σ = 1148420160. Its totient is φ = 859351680.

The previous prime is 998942453. The next prime is 998942471. The reversal of 998942461 is 164249899.

It is not a de Polignac number, because 998942461 - 2³ = 998942453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 998942399 and 998942408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998942431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227095 + ... + 231451.

It is an arithmetic number, because the mean of its divisors is an integer number (71776260).

Almost surely, 2^998942461 is an apocalyptic number.

It is an amenable number.

998942461 is a deficient number, since it is larger than the sum of its proper divisors (149477699).

998942461 is a wasteful number, since it uses less digits than its factorization.

998942461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484.

The product of its digits is 1119744, while the sum is 52.

The square root of 998942461 is about 31606.0510187527. The cubic root of 998942461 is about 999.6473626615.

The spelling of 998942461 in words is "nine hundred ninety-eight million, nine hundred forty-two thousand, four hundred sixty-one".