400043802 has 8 divisors (see below), whose sum is σ = 800087616. Its totient is φ = 133347932.

The previous prime is 400043773. The next prime is 400043827. The reversal of 400043802 is 208340004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

400043802 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33336978 + ... + 33336989.

It is an arithmetic number, because the mean of its divisors is an integer number (100010952).

Almost surely, 2^400043802 is an apocalyptic number.

400043802 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400043802 is a wasteful number, since it uses less digits than its factorization.

400043802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66673972.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 400043802 is about 20001.0950200233. The cubic root of 400043802 is about 736.8331934044.

Adding to 400043802 its reverse (208340004), we get a palindrome (608383806).

The spelling of 400043802 in words is "four hundred million, forty-three thousand, eight hundred two".