622435646 has 8 divisors (see below), whose sum is σ = 1067032560. Its totient is φ = 266758128.

The previous prime is 622435631. The next prime is 622435673. The reversal of 622435646 is 646534226.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×622435646² = 774852266822874632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22229831 + ... + 22229858.

It is an arithmetic number, because the mean of its divisors is an integer number (133379070).

Almost surely, 2^622435646 is an apocalyptic number.

622435646 is a deficient number, since it is larger than the sum of its proper divisors (444596914).

622435646 is a wasteful number, since it uses less digits than its factorization.

622435646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44459698.

The product of its digits is 207360, while the sum is 38.

The square root of 622435646 is about 24948.6602045080. The cubic root of 622435646 is about 853.8170414682.

The spelling of 622435646 in words is "six hundred twenty-two million, four hundred thirty-five thousand, six hundred forty-six".