400275133 has 8 divisors (see below), whose sum is σ = 413418168. Its totient is φ = 387339264.

The previous prime is 400275101. The next prime is 400275137. The reversal of 400275133 is 331572004.

It can be written as a sum of positive squares in 4 ways, for example, as 74183769 + 326091364 = 8613^2 + 18058^2 .

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

It is not a de Polignac number, because 400275133 - 2⁵ = 400275101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400275098 and 400275107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400275137) 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, 47860 + ... + 55597.

It is an arithmetic number, because the mean of its divisors is an integer number (51677271).

Almost surely, 2^400275133 is an apocalyptic number.

It is an amenable number.

400275133 is a deficient number, since it is larger than the sum of its proper divisors (13143035).

400275133 is a wasteful number, since it uses less digits than its factorization.

400275133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103583.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 400275133 is about 20006.8771426227. The cubic root of 400275133 is about 736.9751941167.

The spelling of 400275133 in words is "four hundred million, two hundred seventy-five thousand, one hundred thirty-three".