1970449280 has 64 divisors (see below), whose sum is σ = 4862609280. Its totient is φ = 762746880.

The previous prime is 1970449253. The next prime is 1970449301. The reversal of 1970449280 is 829440791.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 29819 + ... + 69498.

It is an arithmetic number, because the mean of its divisors is an integer number (75978270).

Almost surely, 2^1970449280 is an apocalyptic number.

1970449280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1970449280 is an abundant number, since it is smaller than the sum of its proper divisors (2892160000).

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

1970449280 is an equidigital number, since it uses as much as digits as its factorization.

1970449280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99367 (or 99355 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1970449280 is about 44389.7429593820. The cubic root of 1970449280 is about 1253.6849725073.

The spelling of 1970449280 in words is "one billion, nine hundred seventy million, four hundred forty-nine thousand, two hundred eighty".