1240430 has 16 divisors (see below), whose sum is σ = 2249424. Its totient is φ = 492480.

The previous prime is 1240423. The next prime is 1240483. The reversal of 1240430 is 340421.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1250 + ... + 2010.

It is an arithmetic number, because the mean of its divisors is an integer number (140589).

2^1240430 is an apocalyptic number.

1240430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240430 is a deficient number, since it is larger than the sum of its proper divisors (1008994).

1240430 is a wasteful number, since it uses less digits than its factorization.

1240430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1240430 is about 1113.7459315302. The cubic root of 1240430 is about 107.4461240761.

Adding to 1240430 its reverse (340421), we get a palindrome (1580851).

Subtracting from 1240430 its reverse (340421), we obtain a palindrome (900009).

The spelling of 1240430 in words is "one million, two hundred forty thousand, four hundred thirty".