400350 has 48 divisors (see below), whose sum is σ = 1057968. Its totient is φ = 99840.

The previous prime is 400339. The next prime is 400381. The reversal of 400350 is 53004.

It is a congruent number.

It is an unprimeable number.

400350 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2472 + ... + 2628.

It is an arithmetic number, because the mean of its divisors is an integer number (22041).

2⁴⁰⁰³⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528984).

400350 is an abundant number, since it is smaller than the sum of its proper divisors (657618).

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

400350 is a wasteful number, since it uses less digits than its factorization.

400350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 400350 is about 632.7321708274. The cubic root of 400350 is about 73.7021138916.

Adding to 400350 its reverse (53004), we get a palindrome (453354).

The spelling of 400350 in words is "four hundred thousand, three hundred fifty".