1398430228 has 48 divisors (see below), whose sum is σ = 2777982480. Its totient is φ = 611380224.

The previous prime is 1398430093. The next prime is 1398430237. The reversal of 1398430228 is 8220348931.

It can be written as a sum of positive squares in 8 ways, for example, as 247999504 + 1150430724 = 15748^2 + 33918^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71176 + ... + 88672.

It is an arithmetic number, because the mean of its divisors is an integer number (57874635).

Almost surely, 2^1398430228 is an apocalyptic number.

It is an amenable number.

1398430228 is a deficient number, since it is larger than the sum of its proper divisors (1379552252).

1398430228 is a wasteful number, since it uses less digits than its factorization.

1398430228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17596 (or 17594 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1398430228 is about 37395.5910235418. The cubic root of 1398430228 is about 1118.2706698591.

The spelling of 1398430228 in words is "one billion, three hundred ninety-eight million, four hundred thirty thousand, two hundred twenty-eight".