1972251744 has 48 divisors (see below), whose sum is σ = 5344174080. Its totient is φ = 636209280.

The previous prime is 1972251709. The next prime is 1972251751. The reversal of 1972251744 is 4471522791.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1972251744² = 7779553883422083072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1972251696 and 1972251705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328384 + ... + 334335.

It is an arithmetic number, because the mean of its divisors is an integer number (111336960).

Almost surely, 2^1972251744 is an apocalyptic number.

It is an amenable number.

1972251744 is an abundant number, since it is smaller than the sum of its proper divisors (3371922336).

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

1972251744 is a wasteful number, since it uses less digits than its factorization.

1972251744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662763 (or 662755 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 1972251744 is about 44410.0410267768. The cubic root of 1972251744 is about 1254.0671244997.

The spelling of 1972251744 in words is "one billion, nine hundred seventy-two million, two hundred fifty-one thousand, seven hundred forty-four".