1071648988 has 12 divisors (see below), whose sum is σ = 1876704480. Its totient is φ = 535447712.

The previous prime is 1071648943. The next prime is 1071649003. The reversal of 1071648988 is 8898461701.

It is a happy number.

1071648988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1071648988² = 2296863106962848288, which contains 22 as substring.

It is a congruent number.

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, 87748 + ... + 99211.

It is an arithmetic number, because the mean of its divisors is an integer number (156392040).

Almost surely, 2^1071648988 is an apocalyptic number.

It is an amenable number.

1071648988 is a deficient number, since it is larger than the sum of its proper divisors (805055492).

1071648988 is a wasteful number, since it uses less digits than its factorization.

1071648988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188396 (or 188394 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 1071648988 is about 32736.0502809976. The cubic root of 1071648988 is about 1023.3342726410.

The spelling of 1071648988 in words is "one billion, seventy-one million, six hundred forty-eight thousand, nine hundred eighty-eight".