1232390 has 8 divisors (see below), whose sum is σ = 2218320. Its totient is φ = 492952.

The previous prime is 1232389. The next prime is 1232393. The reversal of 1232390 is 932321.

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

It is a super-2 number, since 2×1232390² = 3037570224200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61610 + ... + 61629.

It is an arithmetic number, because the mean of its divisors is an integer number (277290).

2^1232390 is an apocalyptic number.

1232390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232390 is a deficient number, since it is larger than the sum of its proper divisors (985930).

1232390 is a wasteful number, since it uses less digits than its factorization.

1232390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123246.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1232390 is about 1110.1306229449. The cubic root of 1232390 is about 107.2134789430.

The spelling of 1232390 in words is "one million, two hundred thirty-two thousand, three hundred ninety".