1164390552 has 160 divisors (see below), whose sum is σ = 3531990000. Its totient is φ = 356265216.

The previous prime is 1164390541. The next prime is 1164390581. The reversal of 1164390552 is 2550934611.

1164390552 is a `hidden beast` number, since 1 + 1 + 643 + 9 + 0 + 5 + 5 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2333199 + ... + 2333697.

Almost surely, 2^1164390552 is an apocalyptic number.

1164390552 is a gapful number since it is divisible by the number (12) 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 1164390552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1765995000).

1164390552 is an abundant number, since it is smaller than the sum of its proper divisors (2367599448).

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

1164390552 is a wasteful number, since it uses less digits than its factorization.

1164390552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1164390552 is about 34123.1673793627. The cubic root of 1164390552 is about 1052.0415463552.

The spelling of 1164390552 in words is "one billion, one hundred sixty-four million, three hundred ninety thousand, five hundred fifty-two".