400130 has 8 divisors (see below), whose sum is σ = 720252. Its totient is φ = 160048.

The previous prime is 400123. The next prime is 400151. The reversal of 400130 is 31004.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 4489 = 629^2 + 67^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19997 + ... + 20016.

2⁴⁰⁰¹³⁰ is an apocalyptic number.

400130 is a deficient number, since it is larger than the sum of its proper divisors (320122).

400130 is a wasteful number, since it uses less digits than its factorization.

400130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40020.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 400130 is about 632.5582977086. The cubic root of 400130 is about 73.6886111765.

Adding to 400130 its reverse (31004), we get a palindrome (431134).

The spelling of 400130 in words is "four hundred thousand, one hundred thirty".