3890744452 has 18 divisors (see below), whose sum is σ = 7920444462. Its totient is φ = 1667461824.

The previous prime is 3890744419. The next prime is 3890744461. The reversal of 3890744452 is 2544470983.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2784250756 + 1106493696 = 52766^2 + 33264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9925173 + ... + 9925564.

Almost surely, 2^3890744452 is an apocalyptic number.

It is an amenable number.

3890744452 is an abundant number, since it is smaller than the sum of its proper divisors (4029700010).

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

3890744452 is a wasteful number, since it uses less digits than its factorization.

3890744452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19850755 (or 19850746 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 3890744452 is about 62375.8322750086. The cubic root of 3890744452 is about 1572.8147340193.

The spelling of 3890744452 in words is "three billion, eight hundred ninety million, seven hundred forty-four thousand, four hundred fifty-two".