49481740 has 144 divisors (see below), whose sum is σ = 137281536. Its totient is φ = 14636160.

The previous prime is 49481669. The next prime is 49481759. The reversal of 49481740 is 4718494.

It is a self number, because there is not a number n which added to its sum of digits gives 49481740.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389557 + ... + 389683.

It is an arithmetic number, because the mean of its divisors is an integer number (953344).

Almost surely, 2^49481740 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 49481740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68640768).

49481740 is an abundant number, since it is smaller than the sum of its proper divisors (87799796).

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

49481740 is a wasteful number, since it uses less digits than its factorization.

49481740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 49481740 is about 7034.3258383444. The cubic root of 49481740 is about 367.1258691129.

The spelling of 49481740 in words is "forty-nine million, four hundred eighty-one thousand, seven hundred forty".