1972563140 has 24 divisors (see below), whose sum is σ = 4154334912. Its totient is φ = 786748640.

The previous prime is 1972563133. The next prime is 1972563157. The reversal of 1972563140 is 413652791.

It is a junction number, because it is equal to n+sod(n) for n = 1972563094 and 1972563103.

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, 135176 + ... + 149055.

It is an arithmetic number, because the mean of its divisors is an integer number (173097288).

Almost surely, 2^1972563140 is an apocalyptic number.

1972563140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1972563140 is an abundant number, since it is smaller than the sum of its proper divisors (2181771772).

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

1972563140 is a wasteful number, since it uses less digits than its factorization.

1972563140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284587 (or 284585 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1972563140 is about 44413.5468072524. The cubic root of 1972563140 is about 1254.1331219798.

The spelling of 1972563140 in words is "one billion, nine hundred seventy-two million, five hundred sixty-three thousand, one hundred forty".