38743632 has 60 divisors (see below), whose sum is σ = 109433844. Its totient is φ = 12794880.

The previous prime is 38743631. The next prime is 38743637. The reversal of 38743632 is 23634783.

It can be written as a sum of positive squares in 2 ways, for example, as 254016 + 38489616 = 504^2 + 6204^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38743631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15082 + ... + 17462.

Almost surely, 2^38743632 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 38743632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54716922).

38743632 is an abundant number, since it is smaller than the sum of its proper divisors (70690212).

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

38743632 is a wasteful number, since it uses less digits than its factorization.

38743632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508 (or 2499 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 38743632 is about 6224.4382879100. The cubic root of 38743632 is about 338.3764348227.

The spelling of 38743632 in words is "thirty-eight million, seven hundred forty-three thousand, six hundred thirty-two".