10042122440 has 64 divisors (see below), whose sum is σ = 27181699200. Its totient is φ = 3261800448.

The previous prime is 10042122439. The next prime is 10042122443. The reversal of 10042122440 is 4422124001.

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

It is not an unprimeable number, because it can be changed into a prime (10042122443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938489 + ... + 949128.

It is an arithmetic number, because the mean of its divisors is an integer number (424714050).

Almost surely, 2^10042122440 is an apocalyptic number.

10042122440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10042122440 is an abundant number, since it is smaller than the sum of its proper divisors (17139576760).

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

10042122440 is a wasteful number, since it uses less digits than its factorization.

10042122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887654 (or 1887650 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 10042122440 its reverse (4422124001), we get a palindrome (14464246441).

The spelling of 10042122440 in words is "ten billion, forty-two million, one hundred twenty-two thousand, four hundred forty".