1136222640 has 400 divisors, whose sum is σ = 4638756672. Its totient is φ = 252315648.

The previous prime is 1136222617. The next prime is 1136222663. The reversal of 1136222640 is 462226311.

1136222640 is a `hidden beast` number, since 1 + 13 + 6 + 2 + 2 + 2 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (1136222617) and next prime (1136222663).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1677982 + ... + 1678658.

Almost surely, 2^1136222640 is an apocalyptic number.

1136222640 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 1136222640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2319378336).

1136222640 is an abundant number, since it is smaller than the sum of its proper divisors (3502534032).

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

1136222640 is a wasteful number, since it uses less digits than its factorization.

1136222640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1136222640 is about 33707.9017442498. The cubic root of 1136222640 is about 1043.4888500556.

Adding to 1136222640 its reverse (462226311), we get a palindrome (1598448951).

The spelling of 1136222640 in words is "one billion, one hundred thirty-six million, two hundred twenty-two thousand, six hundred forty".