1326926550 has 48 divisors (see below), whose sum is σ = 3352888080. Its totient is φ = 347168640.

The previous prime is 1326926537. The next prime is 1326926567. The reversal of 1326926550 is 556296231.

It is a junction number, because it is equal to n+sod(n) for n = 1326926499 and 1326926508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75505 + ... + 91404.

It is an arithmetic number, because the mean of its divisors is an integer number (69851835).

Almost surely, 2^1326926550 is an apocalyptic number.

1326926550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1326926550 is an abundant number, since it is smaller than the sum of its proper divisors (2025961530).

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

1326926550 is a wasteful number, since it uses less digits than its factorization.

1326926550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166977 (or 166972 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 1326926550 is about 36427.0030334641. The cubic root of 1326926550 is about 1098.8766907436.

The spelling of 1326926550 in words is "one billion, three hundred twenty-six million, nine hundred twenty-six thousand, five hundred fifty".