1148878920 has 64 divisors (see below), whose sum is σ = 3939016320. Its totient is φ = 262600704.

The previous prime is 1148878901. The next prime is 1148878937. The reversal of 1148878920 is 298788411.

It is a self number, because there is not a number n which added to its sum of digits gives 1148878920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683017 + ... + 684696.

It is an arithmetic number, because the mean of its divisors is an integer number (61547130).

Almost surely, 2^1148878920 is an apocalyptic number.

1148878920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148878920 is an abundant number, since it is smaller than the sum of its proper divisors (2790137400).

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

1148878920 is a wasteful number, since it uses less digits than its factorization.

1148878920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367734 (or 1367730 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 48.

The square root of 1148878920 is about 33895.1164624050. The cubic root of 1148878920 is about 1047.3489950035.

The spelling of 1148878920 in words is "one billion, one hundred forty-eight million, eight hundred seventy-eight thousand, nine hundred twenty".