1228930 has 16 divisors (see below), whose sum is σ = 2342520. Its totient is φ = 462592.

The previous prime is 1228919. The next prime is 1228937. The reversal of 1228930 is 398221.

It can be written as a sum of positive squares in 4 ways, for example, as 1225449 + 3481 = 1107^2 + 59^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1228895 and 1228904.

It is not an unprimeable number, because it can be changed into a prime (1228937) 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, 3445 + ... + 3784.

2^1228930 is an apocalyptic number.

1228930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1228930 is a deficient number, since it is larger than the sum of its proper divisors (1113590).

1228930 is a wasteful number, since it uses less digits than its factorization.

1228930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7253.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1228930 is about 1108.5711524300. The cubic root of 1228930 is about 107.1130490624.

The spelling of 1228930 in words is "one million, two hundred twenty-eight thousand, nine hundred thirty".