50401040 has 40 divisors (see below), whose sum is σ = 120968448. Its totient is φ = 19509120.

The previous prime is 50401033. The next prime is 50401049. The reversal of 50401040 is 4010405.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (50401049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7682 + ... + 12641.

Almost surely, 2^50401040 is an apocalyptic number.

It is an amenable number.

50401040 is an abundant number, since it is smaller than the sum of its proper divisors (70567408).

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

50401040 is a wasteful number, since it uses less digits than its factorization.

50401040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20367 (or 20361 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 50401040 is about 7099.3689860438. The cubic root of 50401040 is about 369.3854908014.

Adding to 50401040 its reverse (4010405), we get a palindrome (54411445).

The spelling of 50401040 in words is "fifty million, four hundred one thousand, forty".