220422387638 has 8 divisors (see below), whose sum is σ = 331696712880. Its totient is φ = 109856816680.

The previous prime is 220422387637. The next prime is 220422387671. The reversal of 220422387638 is 836783224022.

It is a happy number.

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

It is a super-3 number, since 3×220422387638³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220422387592 and 220422387601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220422387637) 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, 177187793 + ... + 177189036.

It is an arithmetic number, because the mean of its divisors is an integer number (41462089110).

Almost surely, 2^220422387638 is an apocalyptic number.

220422387638 is a deficient number, since it is larger than the sum of its proper divisors (111274325242).

220422387638 is a wasteful number, since it uses less digits than its factorization.

220422387638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354377142.

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 220422387638 in words is "two hundred twenty billion, four hundred twenty-two million, three hundred eighty-seven thousand, six hundred thirty-eight".