1124271840 has 96 divisors (see below), whose sum is σ = 3560288256. Its totient is φ = 298211840.

The previous prime is 1124271839. The next prime is 1124271847. The reversal of 1124271840 is 481724211.

It is a tau number, because it is divible by the number of its divisors (96).

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 = 1124271798 and 1124271807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124271847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85549 + ... + 97811.

It is an arithmetic number, because the mean of its divisors is an integer number (37086336).

Almost surely, 2^1124271840 is an apocalyptic number.

1124271840 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 1124271840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780144128).

1124271840 is an abundant number, since it is smaller than the sum of its proper divisors (2436016416).

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

1124271840 is a wasteful number, since it uses less digits than its factorization.

1124271840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12472 (or 12464 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1124271840 is about 33530.1631370920. The cubic root of 1124271840 is about 1039.8174728981.

The spelling of 1124271840 in words is "one billion, one hundred twenty-four million, two hundred seventy-one thousand, eight hundred forty".