38529638 has 8 divisors (see below), whose sum is σ = 66050832. Its totient is φ = 16512696.

The previous prime is 38529637. The next prime is 38529649. The reversal of 38529638 is 83692583.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×38529638² = 2969066008822088, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38529637) 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, 1376045 + ... + 1376072.

It is an arithmetic number, because the mean of its divisors is an integer number (8256354).

Almost surely, 2^38529638 is an apocalyptic number.

38529638 is a deficient number, since it is larger than the sum of its proper divisors (27521194).

38529638 is a wasteful number, since it uses less digits than its factorization.

38529638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752126.

The product of its digits is 311040, while the sum is 44.

The square root of 38529638 is about 6207.2246616342. The cubic root of 38529638 is about 337.7522956676.

Adding to 38529638 its reverse (83692583), we get a palindrome (122222221).

The spelling of 38529638 in words is "thirty-eight million, five hundred twenty-nine thousand, six hundred thirty-eight".