1126125840 has 240 divisors, whose sum is σ = 4193303040. Its totient is φ = 249016320.

The previous prime is 1126125829. The next prime is 1126125853. The reversal of 1126125840 is 485216211.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a junction number, because it is equal to n+sod(n) for n = 1126125798 and 1126125807.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 363016 + ... + 366104.

It is an arithmetic number, because the mean of its divisors is an integer number (17472096).

Almost surely, 2^1126125840 is an apocalyptic number.

1126125840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1126125840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2096651520).

1126125840 is an abundant number, since it is smaller than the sum of its proper divisors (3067177200).

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

1126125840 is a wasteful number, since it uses less digits than its factorization.

1126125840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1126125840 is about 33557.7984975177. The cubic root of 1126125840 is about 1040.3887353495.

The spelling of 1126125840 in words is "one billion, one hundred twenty-six million, one hundred twenty-five thousand, eight hundred forty".