1230790 has 32 divisors (see below), whose sum is σ = 2467584. Its totient is φ = 438240.

The previous prime is 1230769. The next prime is 1230791. The reversal of 1230790 is 970321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230791) 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 15 ways as a sum of consecutive naturals, for example, 7287 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (77112).

2^1230790 is an apocalyptic number.

1230790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230790 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1230790 is a wasteful number, since it uses less digits than its factorization.

1230790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1230790 is about 1109.4097529768. The cubic root of 1230790 is about 107.1670607754.

1230790 divided by its sum of digits (22) gives a triangular number (55945 = T₃₃₄).

The spelling of 1230790 in words is "one million, two hundred thirty thousand, seven hundred ninety".