122142040 has 16 divisors (see below), whose sum is σ = 274819680. Its totient is φ = 48856800.

The previous prime is 122142037. The next prime is 122142047. The reversal of 122142040 is 40241221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122142047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526736 + ... + 1526815.

It is an arithmetic number, because the mean of its divisors is an integer number (17176230).

Almost surely, 2^122142040 is an apocalyptic number.

122142040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122142040 is an abundant number, since it is smaller than the sum of its proper divisors (152677640).

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

122142040 is a wasteful number, since it uses less digits than its factorization.

122142040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053562 (or 3053558 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122142040 is about 11051.7889954523. The cubic root of 122142040 is about 496.1599705130.

Adding to 122142040 its reverse (40241221), we get a palindrome (162383261).

The spelling of 122142040 in words is "one hundred twenty-two million, one hundred forty-two thousand, forty".