1972489670 has 8 divisors (see below), whose sum is σ = 3550481424. Its totient is φ = 788995864.

The previous prime is 1972489639. The next prime is 1972489691. The reversal of 1972489670 is 769842791.

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

It is a congruent number.

It is an unprimeable number.

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, 98624474 + ... + 98624493.

It is an arithmetic number, because the mean of its divisors is an integer number (443810178).

Almost surely, 2^1972489670 is an apocalyptic number.

1972489670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972489670 is a deficient number, since it is larger than the sum of its proper divisors (1577991754).

1972489670 is a wasteful number, since it uses less digits than its factorization.

1972489670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197248974.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The square root of 1972489670 is about 44412.7196870446. The cubic root of 1972489670 is about 1254.1175513241.

The spelling of 1972489670 in words is "one billion, nine hundred seventy-two million, four hundred eighty-nine thousand, six hundred seventy".