1972893792 has 96 divisors (see below), whose sum is σ = 5565635712. Its totient is φ = 609675264.

The previous prime is 1972893773. The next prime is 1972893799. The reversal of 1972893792 is 2973982791.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972893799) 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 15 ways as a sum of consecutive naturals, for example, 100323 + ... + 118365.

It is an arithmetic number, because the mean of its divisors is an integer number (57975372).

Almost surely, 2^1972893792 is an apocalyptic number.

1972893792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1972893792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2782817856).

1972893792 is an abundant number, since it is smaller than the sum of its proper divisors (3592741920).

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

1972893792 is a wasteful number, since it uses less digits than its factorization.

1972893792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18140 (or 18132 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 57.

The square root of 1972893792 is about 44417.2690740887. The cubic root of 1972893792 is about 1254.2031929868.

The spelling of 1972893792 in words is "one billion, nine hundred seventy-two million, eight hundred ninety-three thousand, seven hundred ninety-two".