1136640340 has 48 divisors (see below), whose sum is σ = 2611836864. Its totient is φ = 412070400.

The previous prime is 1136640319. The next prime is 1136640341. The reversal of 1136640340 is 430466311.

It is a junction number, because it is equal to n+sod(n) for n = 1136640299 and 1136640308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136640341) 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, 66475 + ... + 81805.

It is an arithmetic number, because the mean of its divisors is an integer number (54413268).

Almost surely, 2^1136640340 is an apocalyptic number.

1136640340 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 1136640340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1305918432).

1136640340 is an abundant number, since it is smaller than the sum of its proper divisors (1475196524).

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

1136640340 is a wasteful number, since it uses less digits than its factorization.

1136640340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15688 (or 15686 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1136640340 is about 33714.0970515302. The cubic root of 1136640340 is about 1043.6167040744.

The spelling of 1136640340 in words is "one billion, one hundred thirty-six million, six hundred forty thousand, three hundred forty".