400622406682 has 8 divisors (see below), whose sum is σ = 606883448052. Its totient is φ = 198327924000.

The previous prime is 400622406647. The next prime is 400622406683. The reversal of 400622406682 is 286604226004.

It can be written as a sum of positive squares in 2 ways, for example, as 254277139081 + 146345267601 = 504259^2 + 382551^2 .

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

It is not an unprimeable number, because it can be changed into a prime (400622406683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991639419 + ... + 991639822.

Almost surely, 2^400622406682 is an apocalyptic number.

400622406682 is a deficient number, since it is larger than the sum of its proper divisors (206261041370).

400622406682 is a wasteful number, since it uses less digits than its factorization.

400622406682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983279344.

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 400622406682 in words is "four hundred billion, six hundred twenty-two million, four hundred six thousand, six hundred eighty-two".