400352622 has 8 divisors (see below), whose sum is σ = 800705256. Its totient is φ = 133450872.

The previous prime is 400352573. The next prime is 400352639. The reversal of 400352622 is 226253004.

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

400352622 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 400352592 and 400352601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33362713 + ... + 33362724.

It is an arithmetic number, because the mean of its divisors is an integer number (100088157).

Almost surely, 2^400352622 is an apocalyptic number.

400352622 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.

400352622 is a wasteful number, since it uses less digits than its factorization.

400352622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66725442.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 400352622 is about 20008.8136080078. The cubic root of 400352622 is about 737.0227478961.

The spelling of 400352622 in words is "four hundred million, three hundred fifty-two thousand, six hundred twenty-two".