38353644 has 36 divisors (see below), whose sum is σ = 110800144. Its totient is φ = 10958112.

The previous prime is 38353621. The next prime is 38353657. The reversal of 38353644 is 44635383.

38353644 is a `hidden beast` number, since 3 + 8 + 3 + 5 + 3 + 644 = 666.

38353644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 38353599 and 38353608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75847 + ... + 76350.

Almost surely, 2^38353644 is an apocalyptic number.

It is an amenable number.

38353644 is an abundant number, since it is smaller than the sum of its proper divisors (72446500).

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

38353644 is a wasteful number, since it uses less digits than its factorization.

38353644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152214 (or 152209 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 38353644 is about 6193.0318907624. The cubic root of 38353644 is about 337.2372539397.

The spelling of 38353644 in words is "thirty-eight million, three hundred fifty-three thousand, six hundred forty-four".