3668278388 has 24 divisors (see below), whose sum is σ = 6529787040. Its totient is φ = 1802887200.

The previous prime is 3668278387. The next prime is 3668278423. The reversal of 3668278388 is 8838728663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668278387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23495 + ... + 88817.

It is an arithmetic number, because the mean of its divisors is an integer number (272074460).

Almost surely, 2^3668278388 is an apocalyptic number.

It is an amenable number.

3668278388 is a deficient number, since it is larger than the sum of its proper divisors (2861508652).

3668278388 is a wasteful number, since it uses less digits than its factorization.

3668278388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65567 (or 65565 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 59.

The square root of 3668278388 is about 60566.3139707214. The cubic root of 3668278388 is about 1542.2475738333.

The spelling of 3668278388 in words is "three billion, six hundred sixty-eight million, two hundred seventy-eight thousand, three hundred eighty-eight".