50070440 has 128 divisors (see below), whose sum is σ = 139242240. Its totient is φ = 15814656.

The previous prime is 50070431. The next prime is 50070521. The reversal of 50070440 is 4407005.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318842 + ... + 318998.

It is an arithmetic number, because the mean of its divisors is an integer number (1087830).

Almost surely, 2^50070440 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 50070440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69621120).

50070440 is an abundant number, since it is smaller than the sum of its proper divisors (89171800).

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

50070440 is a wasteful number, since it uses less digits than its factorization.

50070440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 50070440 is about 7076.0469190078. The cubic root of 50070440 is about 368.5760708049.

Adding to 50070440 its reverse (4407005), we get a palindrome (54477445).

The spelling of 50070440 in words is "fifty million, seventy thousand, four hundred forty".