1134243840 has 104 divisors (see below), whose sum is σ = 3629333808. Its totient is φ = 302448640.

The previous prime is 1134243797. The next prime is 1134243883. The reversal of 1134243840 is 483424311.

It is an interprime number because it is at equal distance from previous prime (1134243797) and next prime (1134243883).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 = 1134243798 and 1134243807.

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, 52210 + ... + 70670.

Almost surely, 2^1134243840 is an apocalyptic number.

1134243840 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 1134243840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1814666904).

1134243840 is an abundant number, since it is smaller than the sum of its proper divisors (2495089968).

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

1134243840 is an equidigital number, since it uses as much as digits as its factorization.

1134243840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18493 (or 18471 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1134243840 is about 33678.5367853177. The cubic root of 1134243840 is about 1042.8827318780.

The spelling of 1134243840 in words is "one billion, one hundred thirty-four million, two hundred forty-three thousand, eight hundred forty".