3782021272 has 16 divisors (see below), whose sum is σ = 7092003240. Its totient is φ = 1890820416.

The previous prime is 3782021249. The next prime is 3782021381. The reversal of 3782021272 is 2721202873.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96523 + ... + 129925.

Almost surely, 2^3782021272 is an apocalyptic number.

It is an amenable number.

3782021272 is a deficient number, since it is larger than the sum of its proper divisors (3309981968).

3782021272 is a wasteful number, since it uses less digits than its factorization.

3782021272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47562 (or 47558 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 3782021272 is about 61498.1403946493. The cubic root of 3782021272 is about 1558.0258383002.

The spelling of 3782021272 in words is "three billion, seven hundred eighty-two million, twenty-one thousand, two hundred seventy-two".