622438894 has 64 divisors (see below), whose sum is σ = 1208807424. Its totient is φ = 233280000.

The previous prime is 622438891. The next prime is 622438913. The reversal of 622438894 is 498834226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622438891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1150264 + ... + 1150804.

It is an arithmetic number, because the mean of its divisors is an integer number (18887616).

Almost surely, 2^622438894 is an apocalyptic number.

622438894 is a deficient number, since it is larger than the sum of its proper divisors (586368530).

622438894 is a wasteful number, since it uses less digits than its factorization.

622438894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its digits is 663552, while the sum is 46.

The square root of 622438894 is about 24948.7252980989. The cubic root of 622438894 is about 853.8185265978.

The spelling of 622438894 in words is "six hundred twenty-two million, four hundred thirty-eight thousand, eight hundred ninety-four".