1129493100 has 72 divisors (see below), whose sum is σ = 3300445008. Its totient is φ = 298208000.

The previous prime is 1129493069. The next prime is 1129493119. The reversal of 1129493100 is 13949211.

It is a super-2 number, since 2×1129493100² = 2551509325895220000, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11662 + ... + 48938.

It is an arithmetic number, because the mean of its divisors is an integer number (45839514).

Almost surely, 2^1129493100 is an apocalyptic number.

1129493100 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 1129493100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650222504).

1129493100 is an abundant number, since it is smaller than the sum of its proper divisors (2170951908).

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

1129493100 is a wasteful number, since it uses less digits than its factorization.

1129493100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37395 (or 37388 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 1129493100 is about 33607.9320994315. The cubic root of 1129493100 is about 1041.4246685482.

The spelling of 1129493100 in words is "one billion, one hundred twenty-nine million, four hundred ninety-three thousand, one hundred".