1220140334 has 8 divisors (see below), whose sum is σ = 2091669168. Its totient is φ = 522917280.

The previous prime is 1220140321. The next prime is 1220140349. The reversal of 1220140334 is 4330410221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43576427 + ... + 43576454.

It is an arithmetic number, because the mean of its divisors is an integer number (261458646).

Almost surely, 2^1220140334 is an apocalyptic number.

1220140334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1220140334 is a deficient number, since it is larger than the sum of its proper divisors (871528834).

1220140334 is an equidigital number, since it uses as much as digits as its factorization.

1220140334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87152890.

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

The square root of 1220140334 is about 34930.5072107463. The cubic root of 1220140334 is about 1068.5706988106.

Adding to 1220140334 its reverse (4330410221), we get a palindrome (5550550555).

The spelling of 1220140334 in words is "one billion, two hundred twenty million, one hundred forty thousand, three hundred thirty-four".