38288646 has 64 divisors (see below), whose sum is σ = 94199040. Its totient is φ = 11430720.

The previous prime is 38288633. The next prime is 38288651. The reversal of 38288646 is 64688283.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42921 + ... + 43803.

It is an arithmetic number, because the mean of its divisors is an integer number (1471860).

Almost surely, 2^38288646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38288646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47099520).

38288646 is an abundant number, since it is smaller than the sum of its proper divisors (55910394).

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

38288646 is a wasteful number, since it uses less digits than its factorization.

38288646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 972 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 38288646 is about 6187.7819935741. The cubic root of 38288646 is about 337.0466406637.

The spelling of 38288646 in words is "thirty-eight million, two hundred eighty-eight thousand, six hundred forty-six".