1223470 has 8 divisors (see below), whose sum is σ = 2202264. Its totient is φ = 489384.

The previous prime is 1223459. The next prime is 1223471. The reversal of 1223470 is 743221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61164 + ... + 61183.

It is an arithmetic number, because the mean of its divisors is an integer number (275283).

2^1223470 is an apocalyptic number.

1223470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223470 is a deficient number, since it is larger than the sum of its proper divisors (978794).

1223470 is a wasteful number, since it uses less digits than its factorization.

1223470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122354.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1223470 is about 1106.1057815598. The cubic root of 1223470 is about 106.9541830802.

Adding to 1223470 its reverse (743221), we get a palindrome (1966691).

Subtracting from 1223470 its reverse (743221), we obtain a square (480249 = 693²).

The spelling of 1223470 in words is "one million, two hundred twenty-three thousand, four hundred seventy".