400432113 has 8 divisors (see below), whose sum is σ = 593232800. Its totient is φ = 266954724.

The previous prime is 400432103. The next prime is 400432141. The reversal of 400432113 is 311234004.

It is not a de Polignac number, because 400432113 - 2⁹ = 400431601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400432103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7415383 + ... + 7415436.

It is an arithmetic number, because the mean of its divisors is an integer number (74154100).

Almost surely, 2^400432113 is an apocalyptic number.

It is an amenable number.

400432113 is a deficient number, since it is larger than the sum of its proper divisors (192800687).

400432113 is a wasteful number, since it uses less digits than its factorization.

400432113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14830828 (or 14830822 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 400432113 is about 20010.7999090491. The cubic root of 400432113 is about 737.0715238958.

Adding to 400432113 its reverse (311234004), we get a palindrome (711666117).

The spelling of 400432113 in words is "four hundred million, four hundred thirty-two thousand, one hundred thirteen".