3888738 has 36 divisors (see below), whose sum is σ = 9803430. Its totient is φ = 1110816.

The previous prime is 3888721. The next prime is 3888761. The reversal of 3888738 is 8378883.

It can be written as a sum of positive squares in only one way, i.e., 3814209 + 74529 = 1953^2 + 273^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3888693 and 3888702.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1323 + ... + 3086.

Almost surely, 2^3888738 is an apocalyptic number.

3888738 is an abundant number, since it is smaller than the sum of its proper divisors (5914692).

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

3888738 is a wasteful number, since it uses less digits than its factorization.

3888738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4431 (or 4421 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 3888738 is about 1971.9883366795. The cubic root of 3888738 is about 157.2544321340.

The spelling of 3888738 in words is "three million, eight hundred eighty-eight thousand, seven hundred thirty-eight".