1226953680 has 40 divisors (see below), whose sum is σ = 3803557152. Its totient is φ = 327187584.

The previous prime is 1226953669. The next prime is 1226953691. The reversal of 1226953680 is 863596221.

1226953680 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1226953669) and next prime (1226953691).

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

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 7 ways as a sum of consecutive naturals, for example, 2555914 + ... + 2556393.

Almost surely, 2^1226953680 is an apocalyptic number.

1226953680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226953680 is an abundant number, since it is smaller than the sum of its proper divisors (2576603472).

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

1226953680 is a wasteful number, since it uses less digits than its factorization.

1226953680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112323 (or 5112317 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1226953680 is about 35027.8985952626. The cubic root of 1226953680 is about 1070.5559983426. Note that the first 3 decimals are identical.

The spelling of 1226953680 in words is "one billion, two hundred twenty-six million, nine hundred fifty-three thousand, six hundred eighty".