48809439 has 48 divisors (see below), whose sum is σ = 85363200. Its totient is φ = 27479088.

The previous prime is 48809417. The next prime is 48809459. The reversal of 48809439 is 93490884.

It is a happy number.

It is not a de Polignac number, because 48809439 - 2⁹ = 48808927 is a prime.

It is a super-2 number, since 2×48809439² = 4764722670989442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 48809394 and 48809403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48809459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104284 + ... + 104750.

It is an arithmetic number, because the mean of its divisors is an integer number (1778400).

Almost surely, 2^48809439 is an apocalyptic number.

48809439 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

48809439 is a deficient number, since it is larger than the sum of its proper divisors (36553761).

48809439 is a wasteful number, since it uses less digits than its factorization.

48809439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 48809439 is about 6986.3752404233. The cubic root of 48809439 is about 365.4555867343.

The spelling of 48809439 in words is "forty-eight million, eight hundred nine thousand, four hundred thirty-nine".