1226615264 has 24 divisors (see below), whose sum is σ = 2759884848. Its totient is φ = 525692160.

The previous prime is 1226615249. The next prime is 1226615279. The reversal of 1226615264 is 4625166221.

It is an interprime number because it is at equal distance from previous prime (1226615249) and next prime (1226615279).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2737757 + ... + 2738204.

It is an arithmetic number, because the mean of its divisors is an integer number (114995202).

Almost surely, 2^1226615264 is an apocalyptic number.

1226615264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1226615264 is an abundant number, since it is smaller than the sum of its proper divisors (1533269584).

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

1226615264 is an equidigital number, since it uses as much as digits as its factorization.

1226615264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475978 (or 5475970 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 1226615264 is about 35023.0675983701. The cubic root of 1226615264 is about 1070.4575630611.

The spelling of 1226615264 in words is "one billion, two hundred twenty-six million, six hundred fifteen thousand, two hundred sixty-four".