1972112280 has 32 divisors (see below), whose sum is σ = 5916337200. Its totient is φ = 525896576.

The previous prime is 1972112269. The next prime is 1972112309. The reversal of 1972112280 is 822112791.

1972112280 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 8217015 + ... + 8217254.

Almost surely, 2^1972112280 is an apocalyptic number.

1972112280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1972112280 is an abundant number, since it is smaller than the sum of its proper divisors (3944224920).

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

1972112280 is a wasteful number, since it uses less digits than its factorization.

1972112280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16434283 (or 16434279 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 1972112280 is about 44408.4708135734. The cubic root of 1972112280 is about 1254.0375641523.

The spelling of 1972112280 in words is "one billion, nine hundred seventy-two million, one hundred twelve thousand, two hundred eighty".