400828046 has 4 divisors (see below), whose sum is σ = 601242072. Its totient is φ = 200414022.

The previous prime is 400828039. The next prime is 400828081. The reversal of 400828046 is 640828004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100207010 + ... + 100207013.

It is an arithmetic number, because the mean of its divisors is an integer number (150310518).

Almost surely, 2^400828046 is an apocalyptic number.

400828046 is a deficient number, since it is larger than the sum of its proper divisors (200414026).

400828046 is a wasteful number, since it uses less digits than its factorization.

400828046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200414025.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 400828046 is about 20020.6904476344. The cubic root of 400828046 is about 737.3143738896.

The spelling of 400828046 in words is "four hundred million, eight hundred twenty-eight thousand, forty-six".