3538688 has 36 divisors (see below), whose sum is σ = 7382928. Its totient is φ = 1689600.

The previous prime is 3538687. The next prime is 3538697. The reversal of 3538688 is 8868353.

It is a super-2 number, since 2×3538688² = 25044625522688, which contains 22 as substring.

It is an Ulam number.

Its product of digits (138240) is a multiple of the sum of its prime factors (640).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5588 + ... + 6188.

Almost surely, 2^3538688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3538688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3691464).

3538688 is an abundant number, since it is smaller than the sum of its proper divisors (3844240).

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

3538688 is an equidigital number, since it uses as much as digits as its factorization.

3538688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 626 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 3538688 is about 1881.1400798452. The cubic root of 3538688 is about 152.3868263609.

The spelling of 3538688 in words is "three million, five hundred thirty-eight thousand, six hundred eighty-eight".