1128501740 has 24 divisors (see below), whose sum is σ = 2372222160. Its totient is φ = 450949568.

The previous prime is 1128501697. The next prime is 1128501763. The reversal of 1128501740 is 471058211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7307 + ... + 48066.

It is an arithmetic number, because the mean of its divisors is an integer number (98842590).

Almost surely, 2^1128501740 is an apocalyptic number.

1128501740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128501740 is an abundant number, since it is smaller than the sum of its proper divisors (1243720420).

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

1128501740 is a wasteful number, since it uses less digits than its factorization.

1128501740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56401 (or 56399 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 1128501740 is about 33593.1799626055. The cubic root of 1128501740 is about 1041.1198920186.

Adding to 1128501740 its reverse (471058211), we get a palindrome (1599559951).

The spelling of 1128501740 in words is "one billion, one hundred twenty-eight million, five hundred one thousand, seven hundred forty".