400213425 has 12 divisors (see below), whose sum is σ = 661686320. Its totient is φ = 213447120.

The previous prime is 400213403. The next prime is 400213481. The reversal of 400213425 is 524312004.

It is not a de Polignac number, because 400213425 - 2⁵ = 400213393 is a prime.

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, 2668015 + ... + 2668164.

Almost surely, 2^400213425 is an apocalyptic number.

It is an amenable number.

400213425 is a deficient number, since it is larger than the sum of its proper divisors (261472895).

400213425 is a wasteful number, since it uses less digits than its factorization.

400213425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5336192 (or 5336187 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 400213425 is about 20005.3349134675. The cubic root of 400213425 is about 736.9373204987.

Adding to 400213425 its reverse (524312004), we get a palindrome (924525429).

The spelling of 400213425 in words is "four hundred million, two hundred thirteen thousand, four hundred twenty-five".