49616840 has 128 divisors (see below), whose sum is σ = 141039360. Its totient is φ = 15289344.

The previous prime is 49616837. The next prime is 49616843. The reversal of 49616840 is 4861694.

It is an interprime number because it is at equal distance from previous prime (49616837) and next prime (49616843).

It is a junction number, because it is equal to n+sod(n) for n = 49616794 and 49616803.

It is not an unprimeable number, because it can be changed into a prime (49616843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156362 + ... + 156678.

It is an arithmetic number, because the mean of its divisors is an integer number (1101870).

Almost surely, 2^49616840 is an apocalyptic number.

49616840 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 49616840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70519680).

49616840 is an abundant number, since it is smaller than the sum of its proper divisors (91422520).

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

49616840 is a wasteful number, since it uses less digits than its factorization.

49616840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 49616840 is about 7043.9222028640. The cubic root of 49616840 is about 367.4596867560.

The spelling of 49616840 in words is "forty-nine million, six hundred sixteen thousand, eight hundred forty".