3638938248 has 48 divisors (see below), whose sum is σ = 10751410800. Its totient is φ = 1102708320.

The previous prime is 3638938229. The next prime is 3638938249. The reversal of 3638938248 is 8428398363.

It is a happy number.

3638938248 is a `hidden beast` number, since 363 + 8 + 9 + 38 + 248 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3638938194 and 3638938203.

It is not an unprimeable number, because it can be changed into a prime (3638938249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2296518 + ... + 2298101.

It is an arithmetic number, because the mean of its divisors is an integer number (223987725).

Almost surely, 2^3638938248 is an apocalyptic number.

It is an amenable number.

3638938248 is an abundant number, since it is smaller than the sum of its proper divisors (7112472552).

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

3638938248 is a wasteful number, since it uses less digits than its factorization.

3638938248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594642 (or 4594635 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 54.

The square root of 3638938248 is about 60323.6126902227. The cubic root of 3638938248 is about 1538.1247551815.

The spelling of 3638938248 in words is "three billion, six hundred thirty-eight million, nine hundred thirty-eight thousand, two hundred forty-eight".