123640414 has 16 divisors (see below), whose sum is σ = 189458352. Its totient is φ = 60493888.

The previous prime is 123640411. The next prime is 123640423. The reversal of 123640414 is 414046321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123640411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45642 + ... + 48274.

It is an arithmetic number, because the mean of its divisors is an integer number (11841147).

Almost surely, 2^123640414 is an apocalyptic number.

123640414 is a deficient number, since it is larger than the sum of its proper divisors (65817938).

123640414 is a wasteful number, since it uses less digits than its factorization.

123640414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 123640414 is about 11119.3711153104. The cubic root of 123640414 is about 498.1806063099.

Adding to 123640414 its reverse (414046321), we get a palindrome (537686735).

The spelling of 123640414 in words is "one hundred twenty-three million, six hundred forty thousand, four hundred fourteen".