1326767904 has 576 divisors, whose sum is σ = 5094432000. Its totient is φ = 335301120.

The previous prime is 1326767899. The next prime is 1326767933. The reversal of 1326767904 is 4097676231.

It is a self number, because there is not a number n which added to its sum of digits gives 1326767904.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 35858574 + ... + 35858610.

It is an arithmetic number, because the mean of its divisors is an integer number (8844500).

Almost surely, 2^1326767904 is an apocalyptic number.

1326767904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326767904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2547216000).

1326767904 is an abundant number, since it is smaller than the sum of its proper divisors (3767664096).

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

1326767904 is a wasteful number, since it uses less digits than its factorization.

1326767904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 1326767904 is about 36424.8253805011. The cubic root of 1326767904 is about 1098.8328954686.

The spelling of 1326767904 in words is "one billion, three hundred twenty-six million, seven hundred sixty-seven thousand, nine hundred four".