38433645 has 24 divisors (see below), whose sum is σ = 68769792. Its totient is φ = 19836000.

The previous prime is 38433643. The next prime is 38433653. The reversal of 38433645 is 54633483.

38433645 is a `hidden beast` number, since 3 + 8 + 4 + 3 + 3 + 645 = 666.

It is not a de Polignac number, because 38433645 - 2¹ = 38433643 is a prime.

It is a super-3 number, since 3×38433645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38433643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12381 + ... + 15170.

It is an arithmetic number, because the mean of its divisors is an integer number (2865408).

Almost surely, 2^38433645 is an apocalyptic number.

It is an amenable number.

38433645 is a deficient number, since it is larger than the sum of its proper divisors (30336147).

38433645 is a wasteful number, since it uses less digits than its factorization.

38433645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27593 (or 27590 counting only the distinct ones).

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

The square root of 38433645 is about 6199.4874788163. The cubic root of 38433645 is about 337.4715696216.

The spelling of 38433645 in words is "thirty-eight million, four hundred thirty-three thousand, six hundred forty-five".