123004420 has 48 divisors (see below), whose sum is σ = 322051968. Its totient is φ = 38338560.

The previous prime is 123004403. The next prime is 123004433. The reversal of 123004420 is 24400321.

It is a junction number, because it is equal to n+sod(n) for n = 123004394 and 123004403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38397 + ... + 41476.

It is an arithmetic number, because the mean of its divisors is an integer number (6709416).

Almost surely, 2^123004420 is an apocalyptic number.

123004420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123004420 is an abundant number, since it is smaller than the sum of its proper divisors (199047548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123004420 is a wasteful number, since it uses less digits than its factorization.

123004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79900 (or 79898 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 123004420 is about 11090.7357736085. The cubic root of 123004420 is about 497.3249403013.

Adding to 123004420 its reverse (24400321), we get a palindrome (147404741).

The spelling of 123004420 in words is "one hundred twenty-three million, four thousand, four hundred twenty".