998450722 has 16 divisors (see below), whose sum is σ = 1579109760. Its totient is φ = 472167792.

The previous prime is 998450707. The next prime is 998450731. The reversal of 998450722 is 227054899.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 44725.

It is an arithmetic number, because the mean of its divisors is an integer number (98694360).

Almost surely, 2^998450722 is an apocalyptic number.

998450722 is a deficient number, since it is larger than the sum of its proper divisors (580659038).

998450722 is a wasteful number, since it uses less digits than its factorization.

998450722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43497.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 998450722 is about 31598.2708704131. The cubic root of 998450722 is about 999.4833070744.

It can be divided in two parts, 9984 and 50722, that added together give a palindrome (60706).

The spelling of 998450722 in words is "nine hundred ninety-eight million, four hundred fifty thousand, seven hundred twenty-two".