1229930 has 16 divisors (see below), whose sum is σ = 2384424. Its totient is φ = 454080.

The previous prime is 1229911. The next prime is 1229939. The reversal of 1229930 is 399221.

It can be written as a sum of positive squares in 4 ways, for example, as 919681 + 310249 = 959^2 + 557^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1229930.

It is not an unprimeable number, because it can be changed into a prime (1229939) 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, 4601 + ... + 4860.

2^1229930 is an apocalyptic number.

1229930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229930 is a deficient number, since it is larger than the sum of its proper divisors (1154494).

1229930 is a wasteful number, since it uses less digits than its factorization.

1229930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 1229930 is about 1109.0220917547. The cubic root of 1229930 is about 107.1420943861.

The spelling of 1229930 in words is "one million, two hundred twenty-nine thousand, nine hundred thirty".