50400036 has 96 divisors (see below), whose sum is σ = 140273280. Its totient is φ = 15593472.

The previous prime is 50400001. The next prime is 50400037. The reversal of 50400036 is 63000405.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 50399991 and 50400018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50400037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177951 + ... + 178233.

It is an arithmetic number, because the mean of its divisors is an integer number (1461180).

Almost surely, 2^50400036 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 50400036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70136640).

50400036 is an abundant number, since it is smaller than the sum of its proper divisors (89873244).

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

50400036 is a wasteful number, since it uses less digits than its factorization.

50400036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 50400036 is about 7099.2982751819. The cubic root of 50400036 is about 369.3830380379.

The spelling of 50400036 in words is "fifty million, four hundred thousand, thirty-six".