1028974538 has 8 divisors (see below), whose sum is σ = 1634253732. Its totient is φ = 484223296.

The previous prime is 1028974459. The next prime is 1028974559. The reversal of 1028974538 is 8354798201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1023808009 + 5166529 = 31997^2 + 2273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1028974492 and 1028974501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15131945 + ... + 15132012.

Almost surely, 2^1028974538 is an apocalyptic number.

1028974538 is a deficient number, since it is larger than the sum of its proper divisors (605279194).

1028974538 is a wasteful number, since it uses less digits than its factorization.

1028974538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30263976.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 1028974538 is about 32077.6329862414. The cubic root of 1028974538 is about 1009.5663720357.

The spelling of 1028974538 in words is "one billion, twenty-eight million, nine hundred seventy-four thousand, five hundred thirty-eight".