1230456 has 32 divisors (see below), whose sum is σ = 3104640. Its totient is φ = 406368.

The previous prime is 1230433. The next prime is 1230461. The reversal of 1230456 is 6540321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3855 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (97020).

2^1230456 is an apocalyptic number.

It is an amenable number.

1230456 is an abundant number, since it is smaller than the sum of its proper divisors (1874184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230456 is a wasteful number, since it uses less digits than its factorization.

1230456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1230456 is about 1109.2592122674. The cubic root of 1230456 is about 107.1573659082.

Adding to 1230456 its reverse (6540321), we get a palindrome (7770777).

The spelling of 1230456 in words is "one million, two hundred thirty thousand, four hundred fifty-six".