1126534640 has 160 divisors (see below), whose sum is σ = 3342214656. Its totient is φ = 342881280.

The previous prime is 1126534639. The next prime is 1126534679. The reversal of 1126534640 is 464356211.

It is a junction number, because it is equal to n+sod(n) for n = 1126534597 and 1126534606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262754 + ... + 267006.

Almost surely, 2^1126534640 is an apocalyptic number.

1126534640 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 1126534640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671107328).

1126534640 is an abundant number, since it is smaller than the sum of its proper divisors (2215680016).

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

1126534640 is a wasteful number, since it uses less digits than its factorization.

1126534640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4327 (or 4321 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1126534640 is about 33563.8889284302. Note that the first 3 decimals coincide. The cubic root of 1126534640 is about 1040.5146121818.

The spelling of 1126534640 in words is "one billion, one hundred twenty-six million, five hundred thirty-four thousand, six hundred forty".