400404010 has 32 divisors (see below), whose sum is σ = 772405632. Its totient is φ = 149054400.

The previous prime is 400404007. The next prime is 400404013. The reversal of 400404010 is 10404004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (400404007) and next prime (400404013).

It is not an unprimeable number, because it can be changed into a prime (400404013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15016 + ... + 32035.

It is an arithmetic number, because the mean of its divisors is an integer number (24137676).

Almost surely, 2^400404010 is an apocalyptic number.

400404010 is a deficient number, since it is larger than the sum of its proper divisors (372001622).

400404010 is a wasteful number, since it uses less digits than its factorization.

400404010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47118.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 400404010 is about 20010.0977009109. The cubic root of 400404010 is about 737.0542805188.

Adding to 400404010 its reverse (10404004), we get a palindrome (410808014).

The spelling of 400404010 in words is "four hundred million, four hundred four thousand, ten".