400242352 has 10 divisors (see below), whose sum is σ = 775469588. Its totient is φ = 200121168.

The previous prime is 400242331. The next prime is 400242439. The reversal of 400242352 is 253242004.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12507558 + ... + 12507589.

Almost surely, 2^400242352 is an apocalyptic number.

It is an amenable number.

400242352 is a deficient number, since it is larger than the sum of its proper divisors (375227236).

400242352 is a wasteful number, since it uses less digits than its factorization.

400242352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25015155 (or 25015149 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 400242352 is about 20006.0578825515. The cubic root of 400242352 is about 736.9550750857.

Adding to 400242352 its reverse (253242004), we get a palindrome (653484356).

The spelling of 400242352 in words is "four hundred million, two hundred forty-two thousand, three hundred fifty-two".