49881442 has 8 divisors (see below), whose sum is σ = 80577756. Its totient is φ = 23022192.

The previous prime is 49881431. The next prime is 49881443. The reversal of 49881442 is 24418894.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39325441 + 10556001 = 6271^2 + 3249^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 49881395 and 49881404.

It is not an unprimeable number, because it can be changed into a prime (49881443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959233 + ... + 959284.

Almost surely, 2^49881442 is an apocalyptic number.

49881442 is a deficient number, since it is larger than the sum of its proper divisors (30696314).

49881442 is a wasteful number, since it uses less digits than its factorization.

49881442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918532.

The product of its digits is 73728, while the sum is 40.

The square root of 49881442 is about 7062.6795198423. The cubic root of 49881442 is about 368.1117384772. Note that the first 3 decimals are identical.

The spelling of 49881442 in words is "forty-nine million, eight hundred eighty-one thousand, four hundred forty-two".