400424443142 has 8 divisors (see below), whose sum is σ = 609601391256. Its totient is φ = 197223979392.

The previous prime is 400424443127. The next prime is 400424443157. The reversal of 400424443142 is 241344424004.

It is an interprime number because it is at equal distance from previous prime (400424443127) and next prime (400424443157).

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

It is a junction number, because it is equal to n+sod(n) for n = 400424443099 and 400424443108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1494120923 + ... + 1494121190.

It is an arithmetic number, because the mean of its divisors is an integer number (76200173907).

Almost surely, 2^400424443142 is an apocalyptic number.

400424443142 is a deficient number, since it is larger than the sum of its proper divisors (209176948114).

400424443142 is a wasteful number, since it uses less digits than its factorization.

400424443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988242182.

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 400424443142 its reverse (241344424004), we get a palindrome (641768867146).

The spelling of 400424443142 in words is "four hundred billion, four hundred twenty-four million, four hundred forty-three thousand, one hundred forty-two".