400626343 has 32 divisors (see below), whose sum is σ = 474969600. Its totient is φ = 334647936.

The previous prime is 400626341. The next prime is 400626349. The reversal of 400626343 is 343626004.

It is a cyclic number.

It is not a de Polignac number, because 400626343 - 2¹ = 400626341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400626341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538830 + ... + 539572.

It is an arithmetic number, because the mean of its divisors is an integer number (14842800).

Almost surely, 2^400626343 is an apocalyptic number.

400626343 is a deficient number, since it is larger than the sum of its proper divisors (74343257).

400626343 is a wasteful number, since it uses less digits than its factorization.

400626343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 400626343 is about 20015.6524500202. The cubic root of 400626343 is about 737.1906770613.

The spelling of 400626343 in words is "four hundred million, six hundred twenty-six thousand, three hundred forty-three".