50263440 has 40 divisors (see below), whose sum is σ = 155817408. Its totient is φ = 13403520.

The previous prime is 50263403. The next prime is 50263453. The reversal of 50263440 is 4436205.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 50263440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104476 + ... + 104955.

Almost surely, 2^50263440 is an apocalyptic number.

It is an amenable number.

50263440 is an abundant number, since it is smaller than the sum of its proper divisors (105553968).

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

50263440 is a wasteful number, since it uses less digits than its factorization.

50263440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209447 (or 209441 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 50263440 is about 7089.6713605075. The cubic root of 50263440 is about 369.0490310211.

Adding to 50263440 its reverse (4436205), we get a palindrome (54699645).

The spelling of 50263440 in words is "fifty million, two hundred sixty-three thousand, four hundred forty".