1127390840 has 64 divisors (see below), whose sum is σ = 2675376000. Its totient is φ = 426384000.

The previous prime is 1127390809. The next prime is 1127390893. The reversal of 1127390840 is 480937211.

It is a super-2 number, since 2×1127390840² = 2542020212231811200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1127390840.

It is a congruent number.

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, 499715 + ... + 501965.

It is an arithmetic number, because the mean of its divisors is an integer number (41802750).

Almost surely, 2^1127390840 is an apocalyptic number.

1127390840 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 1127390840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337688000).

1127390840 is an abundant number, since it is smaller than the sum of its proper divisors (1547985160).

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

1127390840 is a wasteful number, since it uses less digits than its factorization.

1127390840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2940 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1127390840 is about 33576.6412852745. The cubic root of 1127390840 is about 1040.7781528294.

The spelling of 1127390840 in words is "one billion, one hundred twenty-seven million, three hundred ninety thousand, eight hundred forty".