49187544 has 64 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 13923840.

The previous prime is 49187539. The next prime is 49187549. The reversal of 49187544 is 44578194.

It is an interprime number because it is at equal distance from previous prime (49187539) and next prime (49187549).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 49187496 and 49187505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49187549) 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, 17689 + ... + 20279.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 2^49187544 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 49187544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70917120).

49187544 is an abundant number, since it is smaller than the sum of its proper divisors (92646696).

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

49187544 is a wasteful number, since it uses less digits than its factorization.

49187544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720 (or 2716 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 49187544 is about 7013.3832064133. The cubic root of 49187544 is about 366.3968343516.

The spelling of 49187544 in words is "forty-nine million, one hundred eighty-seven thousand, five hundred forty-four".