38463945 has 64 divisors (see below), whose sum is σ = 72140544. Its totient is φ = 17326080.

The previous prime is 38463937. The next prime is 38463949. The reversal of 38463945 is 54936483.

38463945 = 78² + 79² + ... + 487².

38463945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38463945 - 2³ = 38463937 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38463897 and 38463906.

It is not an unprimeable number, because it can be changed into a prime (38463949) 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 63 ways as a sum of consecutive naturals, for example, 135774 + ... + 136056.

It is an arithmetic number, because the mean of its divisors is an integer number (1127196).

Almost surely, 2^38463945 is an apocalyptic number.

It is an amenable number.

38463945 is a deficient number, since it is larger than the sum of its proper divisors (33676599).

38463945 is a wasteful number, since it uses less digits than its factorization.

38463945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362.

The product of its digits is 311040, while the sum is 42.

The square root of 38463945 is about 6201.9307477591. The cubic root of 38463945 is about 337.5602306771.

The spelling of 38463945 in words is "thirty-eight million, four hundred sixty-three thousand, nine hundred forty-five".