1936721472 has 168 divisors, whose sum is σ = 6007790880. Its totient is φ = 548997120.

The previous prime is 1936721453. The next prime is 1936721477. The reversal of 1936721472 is 2741276391.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1936721477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1306972 + ... + 1308452.

It is an arithmetic number, because the mean of its divisors is an integer number (35760660).

Almost surely, 2^1936721472 is an apocalyptic number.

1936721472 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 1936721472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3003895440).

1936721472 is an abundant number, since it is smaller than the sum of its proper divisors (4071069408).

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

1936721472 is a wasteful number, since it uses less digits than its factorization.

1936721472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1632 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The square root of 1936721472 is about 44008.1977817770. The cubic root of 1936721472 is about 1246.4907379768.

The spelling of 1936721472 in words is "one billion, nine hundred thirty-six million, seven hundred twenty-one thousand, four hundred seventy-two".