50693440 has 168 divisors, whose sum is σ = 145417032. Its totient is φ = 16773120.

The previous prime is 50693429. The next prime is 50693453. The reversal of 50693440 is 4439605.

It can be written as a sum of positive squares in 4 ways, for example, as 906304 + 49787136 = 952^2 + 7056^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 831010 + ... + 831070.

Almost surely, 2^50693440 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 50693440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72708516).

50693440 is an abundant number, since it is smaller than the sum of its proper divisors (94723592).

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

50693440 is a wasteful number, since it uses less digits than its factorization.

50693440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 50693440 is about 7119.9325839505. The cubic root of 50693440 is about 370.0984398410.

The spelling of 50693440 in words is "fifty million, six hundred ninety-three thousand, four hundred forty".