1155430 has 16 divisors (see below), whose sum is σ = 2093040. Its totient is φ = 459232.

The previous prime is 1155419. The next prime is 1155431. The reversal of 1155430 is 345511.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1155398 and 1155407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (130815).

2^1155430 is an apocalyptic number.

1155430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155430 is a deficient number, since it is larger than the sum of its proper divisors (937610).

1155430 is a wasteful number, since it uses less digits than its factorization.

1155430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1155430 is about 1074.9092984992. The cubic root of 1155430 is about 104.9335936873.

The spelling of 1155430 in words is "one million, one hundred fifty-five thousand, four hundred thirty".