1140758640 has 480 divisors, whose sum is σ = 4640702976. Its totient is φ = 255052800.

The previous prime is 1140758639. The next prime is 1140758659. The reversal of 1140758640 is 468570411.

It is a happy number.

1140758640 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 7 + 5 + 8 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1140758595 and 1140758604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11294590 + ... + 11294690.

Almost surely, 2^1140758640 is an apocalyptic number.

1140758640 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 1140758640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2320351488).

1140758640 is an abundant number, since it is smaller than the sum of its proper divisors (3499944336).

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

1140758640 is a wasteful number, since it uses less digits than its factorization.

1140758640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1140758640 is about 33775.1186526413. The cubic root of 1140758640 is about 1044.8756031193.

The spelling of 1140758640 in words is "one billion, one hundred forty million, seven hundred fifty-eight thousand, six hundred forty".