1128920672 has 24 divisors (see below), whose sum is σ = 2424614472. Its totient is φ = 513145600.

The previous prime is 1128920651. The next prime is 1128920687. The reversal of 1128920672 is 2760298211.

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, 1603229 + ... + 1603932.

It is an arithmetic number, because the mean of its divisors is an integer number (101025603).

Almost surely, 2^1128920672 is an apocalyptic number.

It is an amenable number.

1128920672 is an abundant number, since it is smaller than the sum of its proper divisors (1295693800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1128920672 is a wasteful number, since it uses less digits than its factorization.

1128920672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207182 (or 3207174 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1128920672 is about 33599.4147568079. The cubic root of 1128920672 is about 1041.2487072028.

The spelling of 1128920672 in words is "one billion, one hundred twenty-eight million, nine hundred twenty thousand, six hundred seventy-two".