1225964264 has 32 divisors (see below), whose sum is σ = 2630147520. Its totient is φ = 524797056.

The previous prime is 1225964237. The next prime is 1225964269. The reversal of 1225964264 is 4624695221.

It is not an unprimeable number, because it can be changed into a prime (1225964269) 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, 37052 + ... + 61844.

It is an arithmetic number, because the mean of its divisors is an integer number (82192110).

Almost surely, 2^1225964264 is an apocalyptic number.

1225964264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1225964264 is an abundant number, since it is smaller than the sum of its proper divisors (1404183256).

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

1225964264 is a wasteful number, since it uses less digits than its factorization.

1225964264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25689 (or 25685 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 1225964264 is about 35013.7724902645. The cubic root of 1225964264 is about 1070.2681553435.

The spelling of 1225964264 in words is "one billion, two hundred twenty-five million, nine hundred sixty-four thousand, two hundred sixty-four".