1326671970 has 192 divisors, whose sum is σ = 3723853824. Its totient is φ = 301466880.

The previous prime is 1326671933. The next prime is 1326671987. The reversal of 1326671970 is 791766231.

It is a congruent number.

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, 3614727 + ... + 3615093.

It is an arithmetic number, because the mean of its divisors is an integer number (19395072).

Almost surely, 2^1326671970 is an apocalyptic number.

1326671970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1326671970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1861926912).

1326671970 is an abundant number, since it is smaller than the sum of its proper divisors (2397181854).

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

1326671970 is a wasteful number, since it uses less digits than its factorization.

1326671970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 1326671970 is about 36423.5084801011. The cubic root of 1326671970 is about 1098.8064105610.

The spelling of 1326671970 in words is "one billion, three hundred twenty-six million, six hundred seventy-one thousand, nine hundred seventy".