1153440650 has 48 divisors (see below), whose sum is σ = 2275508376. Its totient is φ = 433489920.

The previous prime is 1153440647. The next prime is 1153440679. The reversal of 1153440650 is 560443511.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 192626641 + 960814009 = 13879^2 + 30997^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 931832 + ... + 933068.

Almost surely, 2^1153440650 is an apocalyptic number.

1153440650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1153440650 is a deficient number, since it is larger than the sum of its proper divisors (1122067726).

1153440650 is a wasteful number, since it uses less digits than its factorization.

1153440650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1153440650 is about 33962.3416448277. The cubic root of 1153440650 is about 1048.7333630444.

The spelling of 1153440650 in words is "one billion, one hundred fifty-three million, four hundred forty thousand, six hundred fifty".