1129219520 has 112 divisors (see below), whose sum is σ = 3159178848. Its totient is φ = 379023360.

The previous prime is 1129219493. The next prime is 1129219589. The reversal of 1129219520 is 259129211.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33422 + ... + 58098.

It is an arithmetic number, because the mean of its divisors is an integer number (28206954).

Almost surely, 2^1129219520 is an apocalyptic number.

1129219520 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 1129219520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579589424).

1129219520 is an abundant number, since it is smaller than the sum of its proper divisors (2029959328).

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

1129219520 is a wasteful number, since it uses less digits than its factorization.

1129219520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24718 (or 24708 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1129219520 is about 33603.8616828483. The cubic root of 1129219520 is about 1041.3405789192.

The spelling of 1129219520 in words is "one billion, one hundred twenty-nine million, two hundred nineteen thousand, five hundred twenty".