400234125 has 32 divisors (see below), whose sum is σ = 672916608. Its totient is φ = 211238400.

The previous prime is 400234103. The next prime is 400234139. The reversal of 400234125 is 521432004.

It is not a de Polignac number, because 400234125 - 2⁷ = 400233997 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 30874 + ... + 41876.

It is an arithmetic number, because the mean of its divisors is an integer number (21028644).

Almost surely, 2^400234125 is an apocalyptic number.

It is an amenable number.

400234125 is a deficient number, since it is larger than the sum of its proper divisors (272682483).

400234125 is a wasteful number, since it uses less digits than its factorization.

400234125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118 (or 11108 counting only the distinct ones).

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

The square root of 400234125 is about 20005.8522687738. The cubic root of 400234125 is about 736.9500256693.

Adding to 400234125 its reverse (521432004), we get a palindrome (921666129).

The spelling of 400234125 in words is "four hundred million, two hundred thirty-four thousand, one hundred twenty-five".