122040646 has 24 divisors (see below), whose sum is σ = 226548144. Its totient is φ = 48278880.

The previous prime is 122040619. The next prime is 122040649. The reversal of 122040646 is 646040221.

It is a self number, because there is not a number n which added to its sum of digits gives 122040646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122040649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23425 + ... + 28156.

It is an arithmetic number, because the mean of its divisors is an integer number (9439506).

Almost surely, 2^122040646 is an apocalyptic number.

122040646 is a deficient number, since it is larger than the sum of its proper divisors (104507498).

122040646 is a wasteful number, since it uses less digits than its factorization.

122040646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51616 (or 51603 counting only the distinct ones).

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

The square root of 122040646 is about 11047.2008219277. The cubic root of 122040646 is about 496.0226397704.

Adding to 122040646 its reverse (646040221), we get a palindrome (768080867).

The spelling of 122040646 in words is "one hundred twenty-two million, forty thousand, six hundred forty-six".