1129430 has 16 divisors (see below), whose sum is σ = 2072304. Its totient is φ = 443040.

The previous prime is 1129409. The next prime is 1129433. The reversal of 1129430 is 349211.

It is a super-2 number, since 2×1129430² = 2551224249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129433) 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, 536 + ... + 1595.

It is an arithmetic number, because the mean of its divisors is an integer number (129519).

2^1129430 is an apocalyptic number.

1129430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1129430 is a deficient number, since it is larger than the sum of its proper divisors (942874).

1129430 is a wasteful number, since it uses less digits than its factorization.

1129430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2191.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1129430 is about 1062.7464420077. The cubic root of 1129430 is about 104.1405274857.

The spelling of 1129430 in words is "one million, one hundred twenty-nine thousand, four hundred thirty".