49197540 has 96 divisors (see below), whose sum is σ = 161328384. Its totient is φ = 10967040.

The previous prime is 49197539. The next prime is 49197557. The reversal of 49197540 is 4579194.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15792 + ... + 18648.

It is an arithmetic number, because the mean of its divisors is an integer number (1680504).

Almost surely, 2^49197540 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 49197540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80664192).

49197540 is an abundant number, since it is smaller than the sum of its proper divisors (112130844).

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

49197540 is a wasteful number, since it uses less digits than its factorization.

49197540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 49197540 is about 7014.0958077289. The cubic root of 49197540 is about 366.4216526585.

The spelling of 49197540 in words is "forty-nine million, one hundred ninety-seven thousand, five hundred forty".