1140636000 has 384 divisors, whose sum is σ = 4397912064. Its totient is φ = 252979200.

The previous prime is 1140635999. The next prime is 1140636001. The reversal of 1140636000 is 6360411.

It is an interprime number because it is at equal distance from previous prime (1140635999) and next prime (1140636001).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140636001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3107817 + ... + 3108183.

It is an arithmetic number, because the mean of its divisors is an integer number (11452896).

Almost surely, 2^1140636000 is an apocalyptic number.

1140636000 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 1140636000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2198956032).

1140636000 is an abundant number, since it is smaller than the sum of its proper divisors (3257276064).

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

1140636000 is a wasteful number, since it uses less digits than its factorization.

1140636000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1140636000 is about 33773.3030661794. The cubic root of 1140636000 is about 1044.8381578229.

Adding to 1140636000 its reverse (6360411), we get a palindrome (1146996411).

The spelling of 1140636000 in words is "one billion, one hundred forty million, six hundred thirty-six thousand".