622703642 has 32 divisors (see below), whose sum is σ = 1080765504. Its totient is φ = 265939200.

The previous prime is 622703623. The next prime is 622703647. The reversal of 622703642 is 246307226.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 622703599 and 622703608.

It is not an unprimeable number, because it can be changed into a prime (622703647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302288 + ... + 304340.

It is an arithmetic number, because the mean of its divisors is an integer number (33773922).

Almost surely, 2^622703642 is an apocalyptic number.

622703642 is a deficient number, since it is larger than the sum of its proper divisors (458061862).

622703642 is a wasteful number, since it uses less digits than its factorization.

622703642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2894.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 622703642 is about 24954.0305762416. The cubic root of 622703642 is about 853.9395637567.

The spelling of 622703642 in words is "six hundred twenty-two million, seven hundred three thousand, six hundred forty-two".