1069431552 has 432 divisors, whose sum is σ = 3897008640. Its totient is φ = 282839040.

The previous prime is 1069431547. The next prime is 1069431569. The reversal of 1069431552 is 2551349601.

1069431552 is a `hidden beast` number, since 1 + 0 + 69 + 43 + 1 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a super-2 number, since 2×1069431552² = 2287367688826257408, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34497777 + ... + 34497807.

Almost surely, 2^1069431552 is an apocalyptic number.

1069431552 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 1069431552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1948504320).

1069431552 is an abundant number, since it is smaller than the sum of its proper divisors (2827577088).

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

1069431552 is an equidigital number, since it uses as much as digits as its factorization.

1069431552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 66 counting only the distinct ones).

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

The square root of 1069431552 is about 32702.1643320438. The cubic root of 1069431552 is about 1022.6279638910.

The spelling of 1069431552 in words is "one billion, sixty-nine million, four hundred thirty-one thousand, five hundred fifty-two".