49143042 has 72 divisors (see below), whose sum is σ = 120171324. Its totient is φ = 14427072.

The previous prime is 49143037. The next prime is 49143043. The reversal of 49143042 is 24034194.

It can be written as a sum of positive squares in 2 ways, for example, as 48566961 + 576081 = 6969^2 + 759^2 .

It is a junction number, because it is equal to n+sod(n) for n = 49142997 and 49143015.

It is not an unprimeable number, because it can be changed into a prime (49143043) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123588 + ... + 123984.

Almost surely, 2^49143042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49143042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60085662).

49143042 is an abundant number, since it is smaller than the sum of its proper divisors (71028282).

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

49143042 is a wasteful number, since it uses less digits than its factorization.

49143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 49143042 is about 7010.2098399406. The cubic root of 49143042 is about 366.2863029009.

The spelling of 49143042 in words is "forty-nine million, one hundred forty-three thousand, forty-two".