1129621350 has 144 divisors (see below), whose sum is σ = 3310127424. Its totient is φ = 252720000.

The previous prime is 1129621343. The next prime is 1129621351. The reversal of 1129621350 is 531269211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129621351) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 276825 + ... + 280875.

It is an arithmetic number, because the mean of its divisors is an integer number (22986996).

Almost surely, 2^1129621350 is an apocalyptic number.

1129621350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1129621350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655063712).

1129621350 is an abundant number, since it is smaller than the sum of its proper divisors (2180506074).

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

1129621350 is a wasteful number, since it uses less digits than its factorization.

1129621350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4085 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1129621350 is about 33609.8400769775. The cubic root of 1129621350 is about 1041.4640837688.

The spelling of 1129621350 in words is "one billion, one hundred twenty-nine million, six hundred twenty-one thousand, three hundred fifty".