400004452425 has 12 divisors (see below), whose sum is σ = 661340694800. Its totient is φ = 213335707920.

The previous prime is 400004452403. The next prime is 400004452469. The reversal of 400004452425 is 524254400004.

It is not a de Polignac number, because 400004452425 - 2¹³ = 400004444233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400004452392 and 400004452401.

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 in 11 ways as a sum of consecutive naturals, for example, 2666696275 + ... + 2666696424.

Almost surely, 2^400004452425 is an apocalyptic number.

It is an amenable number.

400004452425 is a deficient number, since it is larger than the sum of its proper divisors (261336242375).

400004452425 is a wasteful number, since it uses less digits than its factorization.

400004452425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333392712 (or 5333392707 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 400004452425 its reverse (524254400004), we get a palindrome (924258852429).

The spelling of 400004452425 in words is "four hundred billion, four million, four hundred fifty-two thousand, four hundred twenty-five".