1223034240 has 64 divisors (see below), whose sum is σ = 3898427760. Its totient is φ = 326141952.

The previous prime is 1223034233. The next prime is 1223034259. The reversal of 1223034240 is 424303221.

It is a tau number, because it is divible by the number of its divisors (64).

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, 316579 + ... + 320418.

Almost surely, 2^1223034240 is an apocalyptic number.

1223034240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223034240 is an abundant number, since it is smaller than the sum of its proper divisors (2675393520).

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

1223034240 is an equidigital number, since it uses as much as digits as its factorization.

1223034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637019 (or 637007 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1223034240 is about 34971.9064393121. The cubic root of 1223034240 is about 1069.4148371172.

Adding to 1223034240 its reverse (424303221), we get a palindrome (1647337461).

The spelling of 1223034240 in words is "one billion, two hundred twenty-three million, thirty-four thousand, two hundred forty".