1226745580 has 24 divisors (see below), whose sum is σ = 2583962640. Its totient is φ = 489213120.

The previous prime is 1226745571. The next prime is 1226745587. The reversal of 1226745580 is 855476221.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1226745587) 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, 86035 + ... + 99274.

It is an arithmetic number, because the mean of its divisors is an integer number (107665110).

Almost surely, 2^1226745580 is an apocalyptic number.

1226745580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226745580 is an abundant number, since it is smaller than the sum of its proper divisors (1357217060).

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

1226745580 is a wasteful number, since it uses less digits than its factorization.

1226745580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185649 (or 185647 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1226745580 is about 35024.9279799402. The cubic root of 1226745580 is about 1070.4954703039.

The spelling of 1226745580 in words is "one billion, two hundred twenty-six million, seven hundred forty-five thousand, five hundred eighty".