400333130 has 16 divisors (see below), whose sum is σ = 721245384. Its totient is φ = 159989760.

The previous prime is 400333127. The next prime is 400333133. The reversal of 400333130 is 31333004.

It is an interprime number because it is at equal distance from previous prime (400333127) and next prime (400333133).

It can be written as a sum of positive squares in 4 ways, for example, as 372528601 + 27804529 = 19301^2 + 5273^2 .

It is a super-2 number, since 2×400333130² = 320533229951193800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400333099 and 400333108.

It is not an unprimeable number, because it can be changed into a prime (400333133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5831 + ... + 28890.

Almost surely, 2^400333130 is an apocalyptic number.

400333130 is a deficient number, since it is larger than the sum of its proper divisors (320912254).

400333130 is a wasteful number, since it uses less digits than its factorization.

400333130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35881.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 400333130 is about 20008.3265167280. The cubic root of 400333130 is about 737.0107865402.

Adding to 400333130 its reverse (31333004), we get a palindrome (431666134).

The spelling of 400333130 in words is "four hundred million, three hundred thirty-three thousand, one hundred thirty".