38481645 has 32 divisors (see below), whose sum is σ = 65193984. Its totient is φ = 19342400.

The previous prime is 38481623. The next prime is 38481647. The reversal of 38481645 is 54618483.

It is not a de Polignac number, because 38481645 - 2¹³ = 38473453 is a prime.

It is a super-3 number, since 3×38481645³ (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 (38481647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23710 + ... + 25280.

It is an arithmetic number, because the mean of its divisors is an integer number (2037312).

Almost surely, 2^38481645 is an apocalyptic number.

It is an amenable number.

38481645 is a deficient number, since it is larger than the sum of its proper divisors (26712339).

38481645 is a wasteful number, since it uses less digits than its factorization.

38481645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its digits is 92160, while the sum is 39.

The square root of 38481645 is about 6203.3575586129. The cubic root of 38481645 is about 337.6120012364.

The spelling of 38481645 in words is "thirty-eight million, four hundred eighty-one thousand, six hundred forty-five".