1128262620 has 24 divisors (see below), whose sum is σ = 3159135504. Its totient is φ = 300870016.

The previous prime is 1128262591. The next prime is 1128262621. The reversal of 1128262620 is 262628211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128262621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9402129 + ... + 9402248.

It is an arithmetic number, because the mean of its divisors is an integer number (131630646).

Almost surely, 2^1128262620 is an apocalyptic number.

1128262620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128262620 is an abundant number, since it is smaller than the sum of its proper divisors (2030872884).

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

1128262620 is a wasteful number, since it uses less digits than its factorization.

1128262620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18804389 (or 18804387 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1128262620 is about 33589.6207183112. The cubic root of 1128262620 is about 1041.0463519831.

The spelling of 1128262620 in words is "one billion, one hundred twenty-eight million, two hundred sixty-two thousand, six hundred twenty".