49847920 has 60 divisors (see below), whose sum is σ = 118552680. Its totient is φ = 19491712.

The previous prime is 49847911. The next prime is 49847929. The reversal of 49847920 is 2974894.

It is an interprime number because it is at equal distance from previous prime (49847911) and next prime (49847929).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49847929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278391 + ... + 278569.

It is an arithmetic number, because the mean of its divisors is an integer number (1975878).

Almost surely, 2^49847920 is an apocalyptic number.

49847920 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 49847920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59276340).

49847920 is an abundant number, since it is smaller than the sum of its proper divisors (68704760).

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

49847920 is a wasteful number, since it uses less digits than its factorization.

49847920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 49847920 is about 7060.3059423796. The cubic root of 49847920 is about 368.0292588583.

The spelling of 49847920 in words is "forty-nine million, eight hundred forty-seven thousand, nine hundred twenty".