3966549472 has 24 divisors (see below), whose sum is σ = 8078427000. Its totient is φ = 1914885504.

The previous prime is 3966549451. The next prime is 3966549487. The reversal of 3966549472 is 2749456693.

It is a congruent number.

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, 2136222 + ... + 2138077.

It is an arithmetic number, because the mean of its divisors is an integer number (336601125).

Almost surely, 2^3966549472 is an apocalyptic number.

3966549472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3966549472 is an abundant number, since it is smaller than the sum of its proper divisors (4111877528).

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

3966549472 is a wasteful number, since it uses less digits than its factorization.

3966549472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274338 (or 4274330 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 55.

The square root of 3966549472 is about 62980.5483621729. The cubic root of 3966549472 is about 1582.9637093191.

The spelling of 3966549472 in words is "three billion, nine hundred sixty-six million, five hundred forty-nine thousand, four hundred seventy-two".