1153623320 has 16 divisors (see below), whose sum is σ = 2595652560. Its totient is φ = 461449312.

The previous prime is 1153623311. The next prime is 1153623343. The reversal of 1153623320 is 233263511.

It is a self number, because there is not a number n which added to its sum of digits gives 1153623320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14420252 + ... + 14420331.

It is an arithmetic number, because the mean of its divisors is an integer number (162228285).

Almost surely, 2^1153623320 is an apocalyptic number.

1153623320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153623320 is an abundant number, since it is smaller than the sum of its proper divisors (1442029240).

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

1153623320 is a wasteful number, since it uses less digits than its factorization.

1153623320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28840594 (or 28840590 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1153623320 is about 33965.0308405572. The cubic root of 1153623320 is about 1048.7887226363.

Adding to 1153623320 its reverse (233263511), we get a palindrome (1386886831).

The spelling of 1153623320 in words is "one billion, one hundred fifty-three million, six hundred twenty-three thousand, three hundred twenty".