49143738 has 16 divisors (see below), whose sum is σ = 112328640. Its totient is φ = 14041056.

The previous prime is 49143713. The next prime is 49143749. The reversal of 49143738 is 83734194.

It is a super-2 number, since 2×49143738² = 4830213969225288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49143696 and 49143705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585003 + ... + 585086.

It is an arithmetic number, because the mean of its divisors is an integer number (7020540).

Almost surely, 2^49143738 is an apocalyptic number.

49143738 is an abundant number, since it is smaller than the sum of its proper divisors (63184902).

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

49143738 is a wasteful number, since it uses less digits than its factorization.

49143738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170101.

The product of its digits is 72576, while the sum is 39.

The square root of 49143738 is about 7010.2594816455. The cubic root of 49143738 is about 366.2880320983.

The spelling of 49143738 in words is "forty-nine million, one hundred forty-three thousand, seven hundred thirty-eight".