1340212430 has 16 divisors (see below), whose sum is σ = 2436269184. Its totient is φ = 530776800.

The previous prime is 1340212421. The next prime is 1340212441. The reversal of 1340212430 is 342120431.

It is a Curzon 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, 662462 + ... + 664481.

It is an arithmetic number, because the mean of its divisors is an integer number (152266824).

Almost surely, 2^1340212430 is an apocalyptic number.

1340212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340212430 is a deficient number, since it is larger than the sum of its proper divisors (1096056754).

1340212430 is a wasteful number, since it uses less digits than its factorization.

1340212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327051.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1340212430 is about 36608.9118931443. The cubic root of 1340212430 is about 1102.5320267056.

Adding to 1340212430 its reverse (342120431), we get a palindrome (1682332861).

The spelling of 1340212430 in words is "one billion, three hundred forty million, two hundred twelve thousand, four hundred thirty".