1975029920 has 48 divisors (see below), whose sum is σ = 4826916360. Its totient is φ = 762768384.

The previous prime is 1975029913. The next prime is 1975029929. The reversal of 1975029920 is 299205791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1798777744 + 176252176 = 42412^2 + 13276^2 .

It is not an unprimeable number, because it can be changed into a prime (1975029929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208187 + ... + 217466.

Almost surely, 2^1975029920 is an apocalyptic number.

1975029920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1975029920 is an abundant number, since it is smaller than the sum of its proper divisors (2851886440).

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

1975029920 is a wasteful number, since it uses less digits than its factorization.

1975029920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425697 (or 425689 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 1975029920 is about 44441.3087116030. The cubic root of 1975029920 is about 1254.6556877291.

The spelling of 1975029920 in words is "one billion, nine hundred seventy-five million, twenty-nine thousand, nine hundred twenty".