1326264550 has 24 divisors (see below), whose sum is σ = 2656611216. Its totient is φ = 489697440.

The previous prime is 1326264547. The next prime is 1326264551. The reversal of 1326264550 is 554626231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1326264551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1019554 + ... + 1020853.

It is an arithmetic number, because the mean of its divisors is an integer number (110692134).

Almost surely, 2^1326264550 is an apocalyptic number.

1326264550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1326264550 is an abundant number, since it is smaller than the sum of its proper divisors (1330346666).

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

1326264550 is a wasteful number, since it uses less digits than its factorization.

1326264550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040432 (or 2040427 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 1326264550 is about 36417.9152341262. The cubic root of 1326264550 is about 1098.6939181608.

The spelling of 1326264550 in words is "one billion, three hundred twenty-six million, two hundred sixty-four thousand, five hundred fifty".