1071330628 has 6 divisors (see below), whose sum is σ = 1874828606. Its totient is φ = 535665312.

The previous prime is 1071330587. The next prime is 1071330641. The reversal of 1071330628 is 8260331701.

It can be written as a sum of positive squares in only one way, i.e., 901080324 + 170250304 = 30018^2 + 13048^2 .

It is a super-2 number, since 2×1071330628² = 2295498628981748768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1071330628.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133916325 + ... + 133916332.

Almost surely, 2^1071330628 is an apocalyptic number.

It is an amenable number.

1071330628 is a deficient number, since it is larger than the sum of its proper divisors (803497978).

1071330628 is a wasteful number, since it uses less digits than its factorization.

1071330628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267832661 (or 267832659 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1071330628 is about 32731.1873906218. The cubic root of 1071330628 is about 1023.2329269674.

The spelling of 1071330628 in words is "one billion, seventy-one million, three hundred thirty thousand, six hundred twenty-eight".