38445380 has 12 divisors (see below), whose sum is σ = 80735340. Its totient is φ = 15378144.

The previous prime is 38445353. The next prime is 38445431. The reversal of 38445380 is 8354483.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25542916 + 12902464 = 5054^2 + 3592^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38445380.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961115 + ... + 961154.

It is an arithmetic number, because the mean of its divisors is an integer number (6727945).

Almost surely, 2^38445380 is an apocalyptic number.

It is an amenable number.

38445380 is an abundant number, since it is smaller than the sum of its proper divisors (42289960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38445380 is a wasteful number, since it uses less digits than its factorization.

38445380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922278 (or 1922276 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 38445380 is about 6200.4338557878. The cubic root of 38445380 is about 337.5059130194.

The spelling of 38445380 in words is "thirty-eight million, four hundred forty-five thousand, three hundred eighty".