400150 has 24 divisors (see below), whose sum is σ = 763344. Its totient is φ = 156000.

The previous prime is 400123. The next prime is 400151. The reversal of 400150 is 51004.

400150 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400151) by changing a digit.

400150 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 11 ways as a sum of consecutive naturals, for example, 2575 + ... + 2725.

It is an arithmetic number, because the mean of its divisors is an integer number (31806).

2⁴⁰⁰¹⁵⁰ is an apocalyptic number.

400150 is a deficient number, since it is larger than the sum of its proper divisors (363194).

400150 is a wasteful number, since it uses less digits than its factorization.

400150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 400150 is about 632.5741063306. The cubic root of 400150 is about 73.6898389005.

Adding to 400150 its reverse (51004), we get a palindrome (451154).

The spelling of 400150 in words is "four hundred thousand, one hundred fifty".