1973870144 has 28 divisors (see below), whose sum is σ = 3964100784. Its totient is φ = 975041664.

The previous prime is 1973870137. The next prime is 1973870159. The reversal of 1973870144 is 4410783791.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1973870095 and 1973870104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180482 + ... + 191105.

It is an arithmetic number, because the mean of its divisors is an integer number (141575028).

Almost surely, 2^1973870144 is an apocalyptic number.

It is an amenable number.

1973870144 is an abundant number, since it is smaller than the sum of its proper divisors (1990230640).

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

1973870144 is an equidigital number, since it uses as much as digits as its factorization.

1973870144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371682 (or 371672 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 1973870144 is about 44428.2583948550. The cubic root of 1973870144 is about 1254.4100535646.

The spelling of 1973870144 in words is "one billion, nine hundred seventy-three million, eight hundred seventy thousand, one hundred forty-four".