400432034 has 8 divisors (see below), whose sum is σ = 604969680. Its totient is φ = 198775476.

The previous prime is 400432009. The next prime is 400432037. The reversal of 400432034 is 430234004.

It is a happy number.

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 = 400431997 and 400432015.

It is not an unprimeable number, because it can be changed into a prime (400432037) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 719924 + ... + 720479.

It is an arithmetic number, because the mean of its divisors is an integer number (75621210).

Almost surely, 2^400432034 is an apocalyptic number.

400432034 is a deficient number, since it is larger than the sum of its proper divisors (204537646).

400432034 is a wasteful number, since it uses less digits than its factorization.

400432034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440544.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 400432034 is about 20010.7979351149. The cubic root of 400432034 is about 737.0714754243.

Adding to 400432034 its reverse (430234004), we get a palindrome (830666038).

It can be divided in two parts, 4004 and 32034, that multiplied together give a triangular number (128264136 = T₁₆₀₁₆).

The spelling of 400432034 in words is "four hundred million, four hundred thirty-two thousand, thirty-four".