38921450 has 36 divisors (see below), whose sum is σ = 74292678. Its totient is φ = 15170400.

The previous prime is 38921437. The next prime is 38921453. The reversal of 38921450 is 5412983.

38921450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 15311569 + 23609881 = 3913^2 + 4859^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (38921453) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 92240 + ... + 92660.

Almost surely, 2^38921450 is an apocalyptic number.

38921450 is a deficient number, since it is larger than the sum of its proper divisors (35371228).

38921450 is a wasteful number, since it uses less digits than its factorization.

38921450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 38921450 is about 6238.7057952752. The cubic root of 38921450 is about 338.8933163545.

The spelling of 38921450 in words is "thirty-eight million, nine hundred twenty-one thousand, four hundred fifty".