123440002 has 16 divisors (see below), whose sum is σ = 212000832. Its totient is φ = 52805520.

The previous prime is 123439999. The next prime is 123440033. The reversal of 123440002 is 200044321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52 + ... + 15712.

It is an arithmetic number, because the mean of its divisors is an integer number (13250052).

Almost surely, 2^123440002 is an apocalyptic number.

123440002 is a deficient number, since it is larger than the sum of its proper divisors (88560830).

123440002 is a wasteful number, since it uses less digits than its factorization.

123440002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16233.

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

The square root of 123440002 is about 11110.3556198710. The cubic root of 123440002 is about 497.9112893926.

Adding to 123440002 its reverse (200044321), we get a palindrome (323484323).

The spelling of 123440002 in words is "one hundred twenty-three million, four hundred forty thousand, two".