1225707760 has 40 divisors (see below), whose sum is σ = 2941704576. Its totient is φ = 474466560.

The previous prime is 1225707757. The next prime is 1225707761. The reversal of 1225707760 is 677075221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225707761) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 244639 + ... + 249598.

Almost surely, 2^1225707760 is an apocalyptic number.

1225707760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1225707760 is an abundant number, since it is smaller than the sum of its proper divisors (1715996816).

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

1225707760 is a wasteful number, since it uses less digits than its factorization.

1225707760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494281 (or 494275 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 1225707760 is about 35010.1093971441. The cubic root of 1225707760 is about 1070.1935073788.

The spelling of 1225707760 in words is "one billion, two hundred twenty-five million, seven hundred seven thousand, seven hundred sixty".