48081638 has 32 divisors (see below), whose sum is σ = 82736640. Its totient is φ = 20743360.

The previous prime is 48081601. The next prime is 48081673. The reversal of 48081638 is 83618084.

It is a super-3 number, since 3×48081638³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84218 + ... + 84786.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^48081638 is an apocalyptic number.

48081638 is a deficient number, since it is larger than the sum of its proper divisors (34655002).

48081638 is a wasteful number, since it uses less digits than its factorization.

48081638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 48081638 is about 6934.0924424181. The cubic root of 48081638 is about 363.6300381059.

It can be divided in two parts, 4808 and 1638, that added together give a palindrome (6446).

The spelling of 48081638 in words is "forty-eight million, eighty-one thousand, six hundred thirty-eight".