38448040 has 16 divisors (see below), whose sum is σ = 86508180. Its totient is φ = 15379200.

The previous prime is 38448031. The next prime is 38448043. The reversal of 38448040 is 4084483.

It can be written as a sum of positive squares in 2 ways, for example, as 37920964 + 527076 = 6158^2 + 726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38447993 and 38448011.

It is not an unprimeable number, because it can be changed into a prime (38448043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480561 + ... + 480640.

Almost surely, 2^38448040 is an apocalyptic number.

It is an amenable number.

38448040 is an abundant number, since it is smaller than the sum of its proper divisors (48060140).

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

38448040 is a wasteful number, since it uses less digits than its factorization.

38448040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961212 (or 961208 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 38448040 is about 6200.6483531966. The cubic root of 38448040 is about 337.5136967464.

The spelling of 38448040 in words is "thirty-eight million, four hundred forty-eight thousand, forty".