400310342 has 4 divisors (see below), whose sum is σ = 600465516. Its totient is φ = 200155170.

The previous prime is 400310311. The next prime is 400310353. The reversal of 400310342 is 243013004.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 400310342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100077584 + ... + 100077587.

It is an arithmetic number, because the mean of its divisors is an integer number (150116379).

Almost surely, 2^400310342 is an apocalyptic number.

400310342 is a deficient number, since it is larger than the sum of its proper divisors (200155174).

400310342 is a wasteful number, since it uses less digits than its factorization.

400310342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200155173.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400310342 is about 20007.7570457060. The cubic root of 400310342 is about 736.9968020864.

Adding to 400310342 its reverse (243013004), we get a palindrome (643323346).

The spelling of 400310342 in words is "four hundred million, three hundred ten thousand, three hundred forty-two".