38235821 has 16 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 32926080.

The previous prime is 38235811. The next prime is 38235823. The reversal of 38235821 is 12853283.

It is a cyclic number.

It is not a de Polignac number, because 38235821 - 2¹⁰ = 38234797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38235823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10700 + ... + 13818.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^38235821 is an apocalyptic number.

It is an amenable number.

38235821 is a deficient number, since it is larger than the sum of its proper divisors (5793619).

38235821 is a wasteful number, since it uses less digits than its factorization.

38235821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3196.

The product of its digits is 11520, while the sum is 32.

The square root of 38235821 is about 6183.5120279660. The cubic root of 38235821 is about 336.8915669893.

The spelling of 38235821 in words is "thirty-eight million, two hundred thirty-five thousand, eight hundred twenty-one".