400950 has 84 divisors (see below), whose sum is σ = 1219788. Its totient is φ = 97200.

The previous prime is 400949. The next prime is 400963. The reversal of 400950 is 59004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 36445 + ... + 36455.

2⁴⁰⁰⁹⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609894).

400950 is an abundant number, since it is smaller than the sum of its proper divisors (818838).

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

400950 is a wasteful number, since it uses less digits than its factorization.

400950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 400950 is about 633.2061275762. The cubic root of 400950 is about 73.7389143541.

Adding to 400950 its reverse (59004), we get a palindrome (459954).

The spelling of 400950 in words is "four hundred thousand, nine hundred fifty".