50440421340 has 144 divisors (see below), whose sum is σ = 153991393920. Its totient is φ = 13364152320.

The previous prime is 50440421329. The next prime is 50440421351. The reversal of 50440421340 is 4312404405.

It is a happy number.

50440421340 is a `hidden beast` number, since 5 + 0 + 4 + 404 + 213 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (50440421329) and next prime (50440421351).

It is a super-2 number, since 2×50440421340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20867812 + ... + 20870228.

It is an arithmetic number, because the mean of its divisors is an integer number (1069384680).

Almost surely, 2^50440421340 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 50440421340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76995696960).

50440421340 is an abundant number, since it is smaller than the sum of its proper divisors (103550972580).

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

50440421340 is a wasteful number, since it uses less digits than its factorization.

50440421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 50440421340 its reverse (4312404405), we get a palindrome (54752825745).

The spelling of 50440421340 in words is "fifty billion, four hundred forty million, four hundred twenty-one thousand, three hundred forty".