1239322898 has 54 divisors (see below), whose sum is σ = 2140706421. Its totient is φ = 537688800.

The previous prime is 1239322891. The next prime is 1239322913. The reversal of 1239322898 is 8982239321.

It can be written as a sum of positive squares in 2 ways, for example, as 1233625129 + 5697769 = 35123^2 + 2387^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24893.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1239322891) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16976990 + ... + 16977062.

Almost surely, 2^1239322898 is an apocalyptic number.

1239322898 is a deficient number, since it is larger than the sum of its proper divisors (901383523).

1239322898 is an equidigital number, since it uses as much as digits as its factorization.

1239322898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 117 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The square root of 1239322898 is about 35204.0182081535. The cubic root of 1239322898 is about 1074.1414881328.

Multiplying 1239322898 by its product of digits (373248), we get a square (462574793032704 = 21507552²).

The spelling of 1239322898 in words is "one billion, two hundred thirty-nine million, three hundred twenty-two thousand, eight hundred ninety-eight".