396666622 has 16 divisors (see below), whose sum is σ = 649580400. Its totient is φ = 180167040.

The previous prime is 396666547. The next prime is 396666631. The reversal of 396666622 is 226666693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26704 + ... + 38812.

It is an arithmetic number, because the mean of its divisors is an integer number (40598775).

Almost surely, 2^396666622 is an apocalyptic number.

396666622 is a deficient number, since it is larger than the sum of its proper divisors (252913778).

396666622 is a wasteful number, since it uses less digits than its factorization.

396666622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13611.

The product of its digits is 839808, while the sum is 46.

The square root of 396666622 is about 19916.4912070374. The cubic root of 396666622 is about 734.7538762817.

The spelling of 396666622 in words is "three hundred ninety-six million, six hundred sixty-six thousand, six hundred twenty-two".