1220240344 has 32 divisors (see below), whose sum is σ = 2513088000. Its totient is φ = 552876192.

The previous prime is 1220240341. The next prime is 1220240347. The reversal of 1220240344 is 4430420221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1220240341) and next prime (1220240347).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220240341) 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, 171024 + ... + 178015.

It is an arithmetic number, because the mean of its divisors is an integer number (78534000).

Almost surely, 2^1220240344 is an apocalyptic number.

It is an amenable number.

1220240344 is an abundant number, since it is smaller than the sum of its proper divisors (1292847656).

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

1220240344 is a wasteful number, since it uses less digits than its factorization.

1220240344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349087 (or 349083 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1220240344 is about 34931.9387380661. The cubic root of 1220240344 is about 1068.5998934950.

Adding to 1220240344 its reverse (4430420221), we get a palindrome (5650660565).

The spelling of 1220240344 in words is "one billion, two hundred twenty million, two hundred forty thousand, three hundred forty-four".