1972008280 has 32 divisors (see below), whose sum is σ = 4840385040. Its totient is φ = 717093760.

The previous prime is 1972008257. The next prime is 1972008289. The reversal of 1972008280 is 828002791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972008289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240479 + ... + 2241358.

Almost surely, 2^1972008280 is an apocalyptic number.

1972008280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1972008280 is an abundant number, since it is smaller than the sum of its proper divisors (2868376760).

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

1972008280 is a wasteful number, since it uses less digits than its factorization.

1972008280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4481859 (or 4481855 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1972008280 is about 44407.2998503624. The cubic root of 1972008280 is about 1254.0155197348.

The spelling of 1972008280 in words is "one billion, nine hundred seventy-two million, eight thousand, two hundred eighty".