49738143 has 64 divisors (see below), whose sum is σ = 88309760. Its totient is φ = 24167808.

The previous prime is 49738133. The next prime is 49738177. The reversal of 49738143 is 34183794.

It is not a de Polignac number, because 49738143 - 2⁸ = 49737887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49738123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 222930 + ... + 223152.

It is an arithmetic number, because the mean of its divisors is an integer number (1379840).

Almost surely, 2^49738143 is an apocalyptic number.

49738143 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

49738143 is a deficient number, since it is larger than the sum of its proper divisors (38571617).

49738143 is a wasteful number, since it uses less digits than its factorization.

49738143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

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

The square root of 49738143 is about 7052.5274193015. The cubic root of 49738143 is about 367.7588975811.

The spelling of 49738143 in words is "forty-nine million, seven hundred thirty-eight thousand, one hundred forty-three".