1150640640 has 400 divisors, whose sum is σ = 4277940480. Its totient is φ = 295280640.

The previous prime is 1150640639. The next prime is 1150640681. The reversal of 1150640640 is 460460511.

1150640640 is a `hidden beast` number, since 1 + 15 + 0 + 6 + 4 + 0 + 640 = 666.

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 39 ways as a sum of consecutive naturals, for example, 6428071 + ... + 6428249.

Almost surely, 2^1150640640 is an apocalyptic number.

1150640640 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 1150640640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2138970240).

1150640640 is an abundant number, since it is smaller than the sum of its proper divisors (3127299840).

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

1150640640 is an equidigital number, since it uses as much as digits as its factorization.

1150640640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1150640640 is about 33921.0943219702. The cubic root of 1150640640 is about 1047.8840654147.

The spelling of 1150640640 in words is "one billion, one hundred fifty million, six hundred forty thousand, six hundred forty".