622897240 has 32 divisors (see below), whose sum is σ = 1601736480. Its totient is φ = 213564672.

The previous prime is 622897217. The next prime is 622897243. The reversal of 622897240 is 42798226.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 622897193 and 622897202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622897243) 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, 1112037 + ... + 1112596.

It is an arithmetic number, because the mean of its divisors is an integer number (50054265).

Almost surely, 2^622897240 is an apocalyptic number.

It is an amenable number.

622897240 is an abundant number, since it is smaller than the sum of its proper divisors (978839240).

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

622897240 is a wasteful number, since it uses less digits than its factorization.

622897240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224651 (or 2224647 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 622897240 is about 24957.9093675732. The cubic root of 622897240 is about 854.0280509336.

The spelling of 622897240 in words is "six hundred twenty-two million, eight hundred ninety-seven thousand, two hundred forty".