49680540 has 240 divisors, whose sum is σ = 192384192. Its totient is φ = 10450944.

The previous prime is 49680517. The next prime is 49680577. The reversal of 49680540 is 4508694.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49680495 and 49680504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 147252 + ... + 147588.

Almost surely, 2^49680540 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 49680540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96192096).

49680540 is an abundant number, since it is smaller than the sum of its proper divisors (142703652).

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

49680540 is a wasteful number, since it uses less digits than its factorization.

49680540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 49680540 is about 7048.4423811222. The cubic root of 49680540 is about 367.6168724492.

The spelling of 49680540 in words is "forty-nine million, six hundred eighty thousand, five hundred forty".