50658440 has 64 divisors (see below), whose sum is σ = 130982400. Its totient is φ = 17273088.

The previous prime is 50658409. The next prime is 50658449. The reversal of 50658440 is 4485605.

It is a junction number, because it is equal to n+sod(n) for n = 50658397 and 50658406.

It is not an unprimeable number, because it can be changed into a prime (50658449) 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 15 ways as a sum of consecutive naturals, for example, 66542 + ... + 67298.

It is an arithmetic number, because the mean of its divisors is an integer number (2046600).

Almost surely, 2^50658440 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 50658440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65491200).

50658440 is an abundant number, since it is smaller than the sum of its proper divisors (80323960).

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

50658440 is a wasteful number, since it uses less digits than its factorization.

50658440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 50658440 is about 7117.4742711161. The cubic root of 50658440 is about 370.0132452040.

The spelling of 50658440 in words is "fifty million, six hundred fifty-eight thousand, four hundred forty".