1972770266 has 8 divisors (see below), whose sum is σ = 3114900480. Its totient is φ = 934470108.

The previous prime is 1972770263. The next prime is 1972770307. The reversal of 1972770266 is 6620772791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1972770266.

It is not an unprimeable number, because it can be changed into a prime (1972770263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25957466 + ... + 25957541.

It is an arithmetic number, because the mean of its divisors is an integer number (389362560).

Almost surely, 2^1972770266 is an apocalyptic number.

1972770266 is a deficient number, since it is larger than the sum of its proper divisors (1142130214).

1972770266 is a wasteful number, since it uses less digits than its factorization.

1972770266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51915028.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 1972770266 is about 44415.8785345962. The cubic root of 1972770266 is about 1254.1770165588.

The spelling of 1972770266 in words is "one billion, nine hundred seventy-two million, seven hundred seventy thousand, two hundred sixty-six".