122041640 has 64 divisors (see below), whose sum is σ = 332294400. Its totient is φ = 39379968.

The previous prime is 122041609. The next prime is 122041679. The reversal of 122041640 is 46140221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8060 + ... + 17579.

It is an arithmetic number, because the mean of its divisors is an integer number (5192100).

Almost surely, 2^122041640 is an apocalyptic number.

122041640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122041640 is an abundant number, since it is smaller than the sum of its proper divisors (210252760).

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

122041640 is a wasteful number, since it uses less digits than its factorization.

122041640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25674 (or 25670 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 122041640 is about 11047.2458106082. The cubic root of 122041640 is about 496.0239864397.

Adding to 122041640 its reverse (46140221), we get a palindrome (168181861).

The spelling of 122041640 in words is "one hundred twenty-two million, forty-one thousand, six hundred forty".