38725445 has 30 divisors (see below), whose sum is σ = 53436390. Its totient is φ = 26939440.

The previous prime is 38725403. The next prime is 38725447. The reversal of 38725445 is 54452783.

38725445 = T₃₁₀ + T₃₁₁ + ... + T₆₃₉.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30980356 + 7745089 = 5566^2 + 2783^2 .

It is not a de Polignac number, because 38725445 - 2⁸ = 38725189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38725399 and 38725408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38725447) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1683704 + ... + 1683726.

It is an arithmetic number, because the mean of its divisors is an integer number (1781213).

Almost surely, 2^38725445 is an apocalyptic number.

It is an amenable number.

38725445 is a deficient number, since it is larger than the sum of its proper divisors (14710945).

38725445 is an frugal number, since it uses more digits than its factorization.

38725445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 39 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 38725445 is about 6222.9771813819. The cubic root of 38725445 is about 338.3234797511.

The spelling of 38725445 in words is "thirty-eight million, seven hundred twenty-five thousand, four hundred forty-five".