38921233 has 8 divisors (see below), whose sum is σ = 42603176. Its totient is φ = 35337600.

The previous prime is 38921173. The next prime is 38921243. The reversal of 38921233 is 33212983.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 38526849 = 628^2 + 6207^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38921233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38921195 and 38921204.

It is not an unprimeable number, because it can be changed into a prime (38921243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23748 + ... + 25333.

It is an arithmetic number, because the mean of its divisors is an integer number (5325397).

Almost surely, 2^38921233 is an apocalyptic number.

It is an amenable number.

38921233 is a deficient number, since it is larger than the sum of its proper divisors (3681943).

38921233 is a wasteful number, since it uses less digits than its factorization.

38921233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49155.

The product of its digits is 7776, while the sum is 31.

The square root of 38921233 is about 6238.6884038234. The cubic root of 38921233 is about 338.8926865391.

The spelling of 38921233 in words is "thirty-eight million, nine hundred twenty-one thousand, two hundred thirty-three".