622168040 has 64 divisors (see below), whose sum is σ = 1596263760. Its totient is φ = 216207360.

The previous prime is 622168003. The next prime is 622168049. The reversal of 622168040 is 40861226.

It can be written as a sum of positive squares in 8 ways, for example, as 180579844 + 441588196 = 13438^2 + 21014^2 .

It is a junction number, because it is equal to n+sod(n) for n = 622167994 and 622168012.

It is not an unprimeable number, because it can be changed into a prime (622168049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26351 + ... + 44030.

Almost surely, 2^622168040 is an apocalyptic number.

It is an amenable number.

622168040 is an abundant number, since it is smaller than the sum of its proper divisors (974095720).

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

622168040 is a wasteful number, since it uses less digits than its factorization.

622168040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70422 (or 70418 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 622168040 is about 24943.2964942487. The cubic root of 622168040 is about 853.6946623825.

The spelling of 622168040 in words is "six hundred twenty-two million, one hundred sixty-eight thousand, forty".