400446011 has 4 divisors (see below), whose sum is σ = 457652592. Its totient is φ = 343239432.

The previous prime is 400446001. The next prime is 400446017. The reversal of 400446011 is 110644004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400446011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400446017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28603280 + ... + 28603293.

It is an arithmetic number, because the mean of its divisors is an integer number (114413148).

Almost surely, 2^400446011 is an apocalyptic number.

400446011 is a deficient number, since it is larger than the sum of its proper divisors (57206581).

400446011 is an equidigital number, since it uses as much as digits as its factorization.

400446011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57206580.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 400446011 is about 20011.1471685159. The cubic root of 400446011 is about 737.0800511020.

The spelling of 400446011 in words is "four hundred million, four hundred forty-six thousand, eleven".