998270748 has 72 divisors (see below), whose sum is σ = 2648065056. Its totient is φ = 316483200.

The previous prime is 998270743. The next prime is 998270759. The reversal of 998270748 is 847072899.

It is a junction number, because it is equal to n+sod(n) for n = 998270694 and 998270703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998270743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146538 + ... + 153198.

Almost surely, 2^998270748 is an apocalyptic number.

998270748 is the 19983-rd heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998270748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324032528).

998270748 is an abundant number, since it is smaller than the sum of its proper divisors (1649794308).

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

998270748 is a wasteful number, since it uses less digits than its factorization.

998270748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875 (or 6870 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 998270748 is about 31595.4228963627. The cubic root of 998270748 is about 999.4232500902.

The spelling of 998270748 in words is "nine hundred ninety-eight million, two hundred seventy thousand, seven hundred forty-eight".