50438489400 has 1008 divisors, whose sum is σ = 200899083600. Its totient is φ = 11742382080.

The previous prime is 50438489399. The next prime is 50438489401. The reversal of 50438489400 is 498483405.

It is a happy number.

50438489400 is a `hidden beast` number, since 50 + 43 + 84 + 89 + 400 = 666.

It is an interprime number because it is at equal distance from previous prime (50438489399) and next prime (50438489401).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50438489401) by changing a digit.

It is a polite number, since it can be written in 251 ways as a sum of consecutive naturals, for example, 566724556 + ... + 566724644.

Almost surely, 2^50438489400 is an apocalyptic number.

50438489400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50438489400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100449541800).

50438489400 is an abundant number, since it is smaller than the sum of its proper divisors (150460594200).

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

50438489400 is a wasteful number, since it uses less digits than its factorization.

50438489400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 50438489400 in words is "fifty billion, four hundred thirty-eight million, four hundred eighty-nine thousand, four hundred".