406820622 has 16 divisors (see below), whose sum is σ = 876229200. Its totient is φ = 125175552.

The previous prime is 406820621. The next prime is 406820629. The reversal of 406820622 is 226028604.

It is a self number, because there is not a number n which added to its sum of digits gives 406820622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406820621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607747 + ... + 2607902.

It is an arithmetic number, because the mean of its divisors is an integer number (54764325).

Almost surely, 2^406820622 is an apocalyptic number.

406820622 is an abundant number, since it is smaller than the sum of its proper divisors (469408578).

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

406820622 is a wasteful number, since it uses less digits than its factorization.

406820622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215667.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 406820622 is about 20169.7947932050. The cubic root of 406820622 is about 740.9706170133.

The spelling of 406820622 in words is "four hundred six million, eight hundred twenty thousand, six hundred twenty-two".