49218432 has 32 divisors (see below), whose sum is σ = 130737480. Its totient is φ = 16406016.

The previous prime is 49218427. The next prime is 49218439. The reversal of 49218432 is 23481294.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 49218393 and 49218402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49218439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63703 + ... + 64470.

Almost surely, 2^49218432 is an apocalyptic number.

It is an amenable number.

49218432 is an abundant number, since it is smaller than the sum of its proper divisors (81519048).

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

49218432 is a wasteful number, since it uses less digits than its factorization.

49218432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128190 (or 128178 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 49218432 is about 7015.5849364112. The cubic root of 49218432 is about 366.4735129602.

The spelling of 49218432 in words is "forty-nine million, two hundred eighteen thousand, four hundred thirty-two".