50749440 has 224 divisors, whose sum is σ = 188732160. Its totient is φ = 11403264.

The previous prime is 50749429. The next prime is 50749453. The reversal of 50749440 is 4494705.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (224).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860131 + ... + 860189.

Almost surely, 2^50749440 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 50749440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94366080).

50749440 is an abundant number, since it is smaller than the sum of its proper divisors (137982720).

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

50749440 is an equidigital number, since it uses as much as digits as its factorization.

50749440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 50749440 is about 7123.8641199843. The cubic root of 50749440 is about 370.2346697334.

The spelling of 50749440 in words is "fifty million, seven hundred forty-nine thousand, four hundred forty".