1970276385 has 128 divisors (see below), whose sum is σ = 4138905600. Its totient is φ = 776401920.

The previous prime is 1970276333. The next prime is 1970276389. The reversal of 1970276385 is 5836720791.

It is not a de Polignac number, because 1970276385 - 2⁷ = 1970276257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1970276389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1975707 + ... + 1976703.

It is an arithmetic number, because the mean of its divisors is an integer number (32335200).

Almost surely, 2^1970276385 is an apocalyptic number.

1970276385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1970276385 is an abundant number, since it is smaller than the sum of its proper divisors (2168629215).

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

1970276385 is a wasteful number, since it uses less digits than its factorization.

1970276385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 1970276385 is about 44387.7954510021. The cubic root of 1970276385 is about 1253.6483036782.

The spelling of 1970276385 in words is "one billion, nine hundred seventy million, two hundred seventy-six thousand, three hundred eighty-five".