49557040 has 80 divisors (see below), whose sum is σ = 131429088. Its totient is φ = 17215488.

The previous prime is 49557031. The next prime is 49557041. The reversal of 49557040 is 4075594.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 49556987 and 49557005.

It is not an unprimeable number, because it can be changed into a prime (49557041) 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, 16279 + ... + 19081.

Almost surely, 2^49557040 is an apocalyptic number.

49557040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49557040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65714544).

49557040 is an abundant number, since it is smaller than the sum of its proper divisors (81872048).

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

49557040 is a wasteful number, since it uses less digits than its factorization.

49557040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 2840 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 49557040 is about 7039.6761289139. The cubic root of 49557040 is about 367.3120021986.

The spelling of 49557040 in words is "forty-nine million, five hundred fifty-seven thousand, forty".