49857438 has 32 divisors (see below), whose sum is σ = 104211360. Its totient is φ = 15881600.

The previous prime is 49857433. The next prime is 49857439. The reversal of 49857438 is 83475894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49857433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16156 + ... + 18992.

It is an arithmetic number, because the mean of its divisors is an integer number (3256605).

Almost surely, 2^49857438 is an apocalyptic number.

49857438 is an abundant number, since it is smaller than the sum of its proper divisors (54353922).

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

49857438 is a wasteful number, since it uses less digits than its factorization.

49857438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its digits is 967680, while the sum is 48.

The square root of 49857438 is about 7060.9799603171. The cubic root of 49857438 is about 368.0526812970.

The spelling of 49857438 in words is "forty-nine million, eight hundred fifty-seven thousand, four hundred thirty-eight".