1199453430 has 128 divisors (see below), whose sum is σ = 3365941248. Its totient is φ = 267898752.

The previous prime is 1199453429. The next prime is 1199453447. The reversal of 1199453430 is 343549911.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2293149 + ... + 2293671.

It is an arithmetic number, because the mean of its divisors is an integer number (26296416).

Almost surely, 2^1199453430 is an apocalyptic number.

1199453430 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 1199453430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682970624).

1199453430 is an abundant number, since it is smaller than the sum of its proper divisors (2166487818).

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

1199453430 is a wasteful number, since it uses less digits than its factorization.

1199453430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 1199453430 is about 34633.1261944399. The cubic root of 1199453430 is about 1062.4972065440.

It can be divided in two parts, 119 and 9453430, that added together give a palindrome (9453549).

The spelling of 1199453430 in words is "one billion, one hundred ninety-nine million, four hundred fifty-three thousand, four hundred thirty".