1212430 has 16 divisors (see below), whose sum is σ = 2195424. Its totient is φ = 482080.

The previous prime is 1212427. The next prime is 1212433. The reversal of 1212430 is 342121.

It is an interprime number because it is at equal distance from previous prime (1212427) and next prime (1212433).

It is a self number, because there is not a number n which added to its sum of digits gives 1212430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212433) 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, 2400 + ... + 2860.

It is an arithmetic number, because the mean of its divisors is an integer number (137214).

2^1212430 is an apocalyptic number.

1212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212430 is a deficient number, since it is larger than the sum of its proper divisors (982994).

1212430 is a wasteful number, since it uses less digits than its factorization.

1212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1212430 is about 1101.1039914558. The cubic root of 1212430 is about 106.6315096810.

Adding to 1212430 its reverse (342121), we get a palindrome (1554551).

The spelling of 1212430 in words is "one million, two hundred twelve thousand, four hundred thirty".