50212440 has 128 divisors (see below), whose sum is σ = 176256000. Its totient is φ = 12680064.

The previous prime is 50212439. The next prime is 50212447. The reversal of 50212440 is 4421205.

50212440 is a `hidden beast` number, since 502 + 124 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50212447) 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, 19297 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (1377000).

Almost surely, 2^50212440 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 50212440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88128000).

50212440 is an abundant number, since it is smaller than the sum of its proper divisors (126043560).

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

50212440 is a wasteful number, since it uses less digits than its factorization.

50212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2476 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 50212440 is about 7086.0736660015. The cubic root of 50212440 is about 368.9241697572.

Adding to 50212440 its reverse (4421205), we get a palindrome (54633645).

The spelling of 50212440 in words is "fifty million, two hundred twelve thousand, four hundred forty".