49397136 has 80 divisors (see below), whose sum is σ = 133562880. Its totient is φ = 15713280.

The previous prime is 49397119. The next prime is 49397143. The reversal of 49397136 is 63179394.

Its product of digits (122472) is a multiple of the sum of its prime factors (504).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132246 + ... + 132618.

It is an arithmetic number, because the mean of its divisors is an integer number (1669536).

Almost surely, 2^49397136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49397136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66781440).

49397136 is an abundant number, since it is smaller than the sum of its proper divisors (84165744).

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

49397136 is a wasteful number, since it uses less digits than its factorization.

49397136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504 (or 498 counting only the distinct ones).

The product of its digits is 122472, while the sum is 42.

The square root of 49397136 is about 7028.3096118484. The cubic root of 49397136 is about 366.9165121784.

The spelling of 49397136 in words is "forty-nine million, three hundred ninety-seven thousand, one hundred thirty-six".