49581408 has 48 divisors (see below), whose sum is σ = 133189056. Its totient is φ = 16141440.

The previous prime is 49581403. The next prime is 49581409. The reversal of 49581408 is 80418594.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49581403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878 + ... + 10133.

It is an arithmetic number, because the mean of its divisors is an integer number (2774772).

Almost surely, 2^49581408 is an apocalyptic number.

49581408 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

49581408 is an abundant number, since it is smaller than the sum of its proper divisors (83607648).

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

49581408 is a wasteful number, since it uses less digits than its factorization.

49581408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12067 (or 12059 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 49581408 is about 7041.4066776462. The cubic root of 49581408 is about 367.3721967556.

The spelling of 49581408 in words is "forty-nine million, five hundred eighty-one thousand, four hundred eight".