1972689276 has 24 divisors (see below), whose sum is σ = 4667773824. Its totient is φ = 648301360.

The previous prime is 1972689263. The next prime is 1972689283. The reversal of 1972689276 is 6729862791.

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, 1156830 + ... + 1158533.

It is an arithmetic number, because the mean of its divisors is an integer number (194490576).

Almost surely, 2^1972689276 is an apocalyptic number.

It is an amenable number.

1972689276 is an abundant number, since it is smaller than the sum of its proper divisors (2695084548).

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

1972689276 is a wasteful number, since it uses less digits than its factorization.

1972689276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2315441 (or 2315439 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 1972689276 is about 44414.9668017438. The cubic root of 1972689276 is about 1254.1598533529.

The spelling of 1972689276 in words is "one billion, nine hundred seventy-two million, six hundred eighty-nine thousand, two hundred seventy-six".