622040428 has 24 divisors (see below), whose sum is σ = 1137195360. Its totient is φ = 297158400.

The previous prime is 622040399. The next prime is 622040501. The reversal of 622040428 is 824040226.

It is a junction number, because it is equal to n+sod(n) for n = 622040396 and 622040405.

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, 89478 + ... + 96178.

It is an arithmetic number, because the mean of its divisors is an integer number (47383140).

Almost surely, 2^622040428 is an apocalyptic number.

It is an amenable number.

622040428 is a deficient number, since it is larger than the sum of its proper divisors (515154932).

622040428 is a wasteful number, since it uses less digits than its factorization.

622040428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7737 (or 7735 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 622040428 is about 24940.7383210682. The cubic root of 622040428 is about 853.6362916930.

The spelling of 622040428 in words is "six hundred twenty-two million, forty thousand, four hundred twenty-eight".