1220007264 has 96 divisors (see below), whose sum is σ = 3786289920. Its totient is φ = 336548352.

The previous prime is 1220007211. The next prime is 1220007379. The reversal of 1220007264 is 4627000221.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11814 + ... + 50789.

It is an arithmetic number, because the mean of its divisors is an integer number (39440520).

Almost surely, 2^1220007264 is an apocalyptic number.

1220007264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1220007264 is an abundant number, since it is smaller than the sum of its proper divisors (2566282656).

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

1220007264 is a wasteful number, since it uses less digits than its factorization.

1220007264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62652 (or 62644 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1220007264 is about 34928.6023768487. The cubic root of 1220007264 is about 1068.5318508550.

Adding to 1220007264 its reverse (4627000221), we get a palindrome (5847007485).

The spelling of 1220007264 in words is "one billion, two hundred twenty million, seven thousand, two hundred sixty-four".