3938152340 has 48 divisors (see below), whose sum is σ = 8768187792. Its totient is φ = 1480636416.

The previous prime is 3938152297. The next prime is 3938152369. The reversal of 3938152340 is 432518393.

It can be written as a sum of positive squares in 8 ways, for example, as 44142736 + 3894009604 = 6644^2 + 62402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3938152294 and 3938152303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263714 + ... + 278246.

It is an arithmetic number, because the mean of its divisors is an integer number (182670579).

Almost surely, 2^3938152340 is an apocalyptic number.

It is an amenable number.

3938152340 is an abundant number, since it is smaller than the sum of its proper divisors (4830035452).

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

3938152340 is a wasteful number, since it uses less digits than its factorization.

3938152340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15356 (or 15354 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 3938152340 is about 62754.6997443219. The cubic root of 3938152340 is about 1579.1770991282.

The spelling of 3938152340 in words is "three billion, nine hundred thirty-eight million, one hundred fifty-two thousand, three hundred forty".