1972718343 has 12 divisors (see below), whose sum is σ = 2852411328. Its totient is φ = 1313793600.

The previous prime is 1972718333. The next prime is 1972718351. The reversal of 1972718343 is 3438172791.

It is not a de Polignac number, because 1972718343 - 2¹⁷ = 1972587271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972718323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103383 + ... + 120968.

It is an arithmetic number, because the mean of its divisors is an integer number (237700944).

Almost surely, 2^1972718343 is an apocalyptic number.

1972718343 is a deficient number, since it is larger than the sum of its proper divisors (879692985).

1972718343 is a wasteful number, since it uses less digits than its factorization.

1972718343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225334 (or 225331 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1972718343 is about 44415.2940213166. The cubic root of 1972718343 is about 1254.1660132156.

The spelling of 1972718343 in words is "one billion, nine hundred seventy-two million, seven hundred eighteen thousand, three hundred forty-three".