38445273 has 16 divisors (see below), whose sum is σ = 57662400. Its totient is φ = 25628724.

The previous prime is 38445269. The next prime is 38445283. The reversal of 38445273 is 37254483.

It is a happy number.

38445273 is a `hidden beast` number, since 384 + 4 + 5 + 273 = 666.

It is not a de Polignac number, because 38445273 - 2² = 38445269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38445223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6603 + ... + 10976.

It is an arithmetic number, because the mean of its divisors is an integer number (3603900).

Almost surely, 2^38445273 is an apocalyptic number.

It is an amenable number.

38445273 is a deficient number, since it is larger than the sum of its proper divisors (19217127).

38445273 is an frugal number, since it uses more digits than its factorization.

38445273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600 (or 17582 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 38445273 is about 6200.4252273534. The cubic root of 38445273 is about 337.5055999071.

The spelling of 38445273 in words is "thirty-eight million, four hundred forty-five thousand, two hundred seventy-three".