623402122 has 64 divisors (see below), whose sum is σ = 1169038080. Its totient is φ = 243357696.

The previous prime is 623402111. The next prime is 623402123. The reversal of 623402122 is 221204326.

It is a junction number, because it is equal to n+sod(n) for n = 623402093 and 623402102.

It is not an unprimeable number, because it can be changed into a prime (623402123) 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, 954348 + ... + 955000.

It is an arithmetic number, because the mean of its divisors is an integer number (18266220).

Almost surely, 2^623402122 is an apocalyptic number.

623402122 is a deficient number, since it is larger than the sum of its proper divisors (545635958).

623402122 is a wasteful number, since it uses less digits than its factorization.

623402122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 623402122 is about 24968.0219881351. The cubic root of 623402122 is about 854.2587294031.

Adding to 623402122 its reverse (221204326), we get a palindrome (844606448).

The spelling of 623402122 in words is "six hundred twenty-three million, four hundred two thousand, one hundred twenty-two".