49353840 has 160 divisors (see below), whose sum is σ = 172875840. Its totient is φ = 12939264.

The previous prime is 49353833. The next prime is 49353841. The reversal of 49353840 is 4835394.

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 = 49353795 and 49353804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49353841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157524 + ... + 157836.

It is an arithmetic number, because the mean of its divisors is an integer number (1080474).

Almost surely, 2^49353840 is an apocalyptic number.

49353840 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 49353840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86437920).

49353840 is an abundant number, since it is smaller than the sum of its proper divisors (123522000).

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

49353840 is a wasteful number, since it uses less digits than its factorization.

49353840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 49353840 is about 7025.2288218961. The cubic root of 49353840 is about 366.8092815292.

The spelling of 49353840 in words is "forty-nine million, three hundred fifty-three thousand, eight hundred forty".