1329870540 has 24 divisors (see below), whose sum is σ = 3723637680. Its totient is φ = 354632128.

The previous prime is 1329870533. The next prime is 1329870587. The reversal of 1329870540 is 450789231.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11082195 + ... + 11082314.

It is an arithmetic number, because the mean of its divisors is an integer number (155151570).

Almost surely, 2^1329870540 is an apocalyptic number.

1329870540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1329870540 is an abundant number, since it is smaller than the sum of its proper divisors (2393767140).

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

1329870540 is a wasteful number, since it uses less digits than its factorization.

1329870540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22164521 (or 22164519 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1329870540 is about 36467.3900903259. The cubic root of 1329870540 is about 1099.6887659422.

It can be divided in two parts, 13298 and 70540, that added together give a palindrome (83838).

The spelling of 1329870540 in words is "one billion, three hundred twenty-nine million, eight hundred seventy thousand, five hundred forty".