400250252 has 12 divisors (see below), whose sum is σ = 701398656. Its totient is φ = 199850640.

The previous prime is 400250251. The next prime is 400250267. The reversal of 400250252 is 252052004.

It is not an unprimeable number, because it can be changed into a prime (400250251) 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 3 ways as a sum of consecutive naturals, for example, 65324 + ... + 71187.

It is an arithmetic number, because the mean of its divisors is an integer number (58449888).

Almost surely, 2^400250252 is an apocalyptic number.

It is an amenable number.

400250252 is a deficient number, since it is larger than the sum of its proper divisors (301148404).

400250252 is a wasteful number, since it uses less digits than its factorization.

400250252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137248 (or 137246 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 400250252 is about 20006.2553217737. The cubic root of 400250252 is about 736.9599237370.

The spelling of 400250252 in words is "four hundred million, two hundred fifty thousand, two hundred fifty-two".