622190639 has 8 divisors (see below), whose sum is σ = 717599520. Its totient is φ = 528412896.

The previous prime is 622190629. The next prime is 622190669. The reversal of 622190639 is 936091226.

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

It is a cyclic number.

It is not a de Polignac number, because 622190639 - 2⁴ = 622190623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622190629) 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, 406964 + ... + 408489.

It is an arithmetic number, because the mean of its divisors is an integer number (89699940).

Almost surely, 2^622190639 is an apocalyptic number.

622190639 is a deficient number, since it is larger than the sum of its proper divisors (95408881).

622190639 is a wasteful number, since it uses less digits than its factorization.

622190639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815569.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 622190639 is about 24943.7494976196. The cubic root of 622190639 is about 853.7049985033.

The spelling of 622190639 in words is "six hundred twenty-two million, one hundred ninety thousand, six hundred thirty-nine".