38209844 has 6 divisors (see below), whose sum is σ = 66867234. Its totient is φ = 19104920.

The previous prime is 38209823. The next prime is 38209859. The reversal of 38209844 is 44890283.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 4708900 = 5788^2 + 2170^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38209798 and 38209807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4776227 + ... + 4776234.

It is an arithmetic number, because the mean of its divisors is an integer number (11144539).

Almost surely, 2^38209844 is an apocalyptic number.

It is an amenable number.

38209844 is a deficient number, since it is larger than the sum of its proper divisors (28657390).

38209844 is a wasteful number, since it uses less digits than its factorization.

38209844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9552465 (or 9552463 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 38209844 is about 6181.4111657452. The cubic root of 38209844 is about 336.8152562190.

The spelling of 38209844 in words is "thirty-eight million, two hundred nine thousand, eight hundred forty-four".