998740384 has 24 divisors (see below), whose sum is σ = 1971349380. Its totient is φ = 498080256.

The previous prime is 998740381. The next prime is 998740409. The reversal of 998740384 is 483047899.

It can be written as a sum of positive squares in 2 ways, for example, as 954810000 + 43930384 = 30900^2 + 6628^2 .

It is not an unprimeable number, because it can be changed into a prime (998740381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27669 + ... + 52564.

Almost surely, 2^998740384 is an apocalyptic number.

It is an amenable number.

998740384 is a deficient number, since it is larger than the sum of its proper divisors (972608996).

998740384 is a wasteful number, since it uses less digits than its factorization.

998740384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80632 (or 80624 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 998740384 is about 31602.8540483292. The cubic root of 998740384 is about 999.5799515840.

The spelling of 998740384 in words is "nine hundred ninety-eight million, seven hundred forty thousand, three hundred eighty-four".