622497140 has 24 divisors (see below), whose sum is σ = 1335059712. Its totient is φ = 243700640.

The previous prime is 622497121. The next prime is 622497149. The reversal of 622497140 is 41794226.

It is a self number, because there is not a number n which added to its sum of digits gives 622497140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622497149) 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, 330176 + ... + 332055.

It is an arithmetic number, because the mean of its divisors is an integer number (55627488).

Almost surely, 2^622497140 is an apocalyptic number.

It is an amenable number.

622497140 is an abundant number, since it is smaller than the sum of its proper divisors (712562572).

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

622497140 is a wasteful number, since it uses less digits than its factorization.

622497140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662287 (or 662285 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 622497140 is about 24949.8925849391. The cubic root of 622497140 is about 853.8451583755.

The spelling of 622497140 in words is "six hundred twenty-two million, four hundred ninety-seven thousand, one hundred forty".