400275530 has 16 divisors (see below), whose sum is σ = 720814464. Its totient is φ = 160039440.

The previous prime is 400275511. The next prime is 400275539. The reversal of 400275530 is 35572004.

It is a self number, because there is not a number n which added to its sum of digits gives 400275530.

It is not an unprimeable number, because it can be changed into a prime (400275539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19115 + ... + 34145.

It is an arithmetic number, because the mean of its divisors is an integer number (45050904).

Almost surely, 2^400275530 is an apocalyptic number.

400275530 is a deficient number, since it is larger than the sum of its proper divisors (320538934).

400275530 is a wasteful number, since it uses less digits than its factorization.

400275530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17701.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 400275530 is about 20006.8870642087. The cubic root of 400275530 is about 736.9754377650.

The spelling of 400275530 in words is "four hundred million, two hundred seventy-five thousand, five hundred thirty".