3938957652 has 48 divisors (see below), whose sum is σ = 10647792512. Its totient is φ = 1109998080.

The previous prime is 3938957611. The next prime is 3938957653. The reversal of 3938957652 is 2567598393.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3938957592 and 3938957601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938957653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315049 + ... + 327312.

Almost surely, 2^3938957652 is an apocalyptic number.

It is an amenable number.

3938957652 is an abundant number, since it is smaller than the sum of its proper divisors (6708834860).

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

3938957652 is a wasteful number, since it uses less digits than its factorization.

3938957652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642448 (or 642446 counting only the distinct ones).

The product of its digits is 12247200, while the sum is 57.

The square root of 3938957652 is about 62761.1157644604. The cubic root of 3938957652 is about 1579.2847336637.

The spelling of 3938957652 in words is "three billion, nine hundred thirty-eight million, nine hundred fifty-seven thousand, six hundred fifty-two".