1538980298 has 4 divisors (see below), whose sum is σ = 2308470450. Its totient is φ = 769490148.

The previous prime is 1538980283. The next prime is 1538980397. The reversal of 1538980298 is 8920898351.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1293337369 + 245642929 = 35963^2 + 15673^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384745073 + ... + 384745076.

Almost surely, 2^1538980298 is an apocalyptic number.

1538980298 is a deficient number, since it is larger than the sum of its proper divisors (769490152).

1538980298 is an equidigital number, since it uses as much as digits as its factorization.

1538980298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769490151.

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 1538980298 is about 39229.8393827964. The cubic root of 1538980298 is about 1154.5454125804.

The spelling of 1538980298 in words is "one billion, five hundred thirty-eight million, nine hundred eighty thousand, two hundred ninety-eight".