1326766280 has 32 divisors (see below), whose sum is σ = 3411685440. Its totient is φ = 454891200.

The previous prime is 1326766249. The next prime is 1326766283. The reversal of 1326766280 is 826676231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1326766283) 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, 2368946 + ... + 2369505.

It is an arithmetic number, because the mean of its divisors is an integer number (106615170).

Almost surely, 2^1326766280 is an apocalyptic number.

1326766280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1326766280 is an abundant number, since it is smaller than the sum of its proper divisors (2084919160).

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

1326766280 is a wasteful number, since it uses less digits than its factorization.

1326766280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738469 (or 4738465 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 1326766280 is about 36424.8030880058. The cubic root of 1326766280 is about 1098.8324471346.

The spelling of 1326766280 in words is "one billion, three hundred twenty-six million, seven hundred sixty-six thousand, two hundred eighty".