402220420240417 has 8 divisors (see below), whose sum is σ = 428638227676416. Its totient is φ = 376546776394272.

The previous prime is 402220420240273. The next prime is 402220420240519. The reversal of 402220420240417 is 714042024022204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-402220420240417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402220420241417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186040896348 + ... + 186040898509.

It is an arithmetic number, because the mean of its divisors is an integer number (53579778459552).

Almost surely, 2^{402220420240417} is an apocalyptic number.

402220420240417 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

402220420240417 is a deficient number, since it is larger than the sum of its proper divisors (26417807435999).

402220420240417 is a wasteful number, since it uses less digits than its factorization.

402220420240417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372081794927.

The product of its (nonzero) digits is 57344, while the sum is 34.

The spelling of 402220420240417 in words is "four hundred two trillion, two hundred twenty billion, four hundred twenty million, two hundred forty thousand, four hundred seventeen".