10422021438 has 64 divisors (see below), whose sum is σ = 23595264000. Its totient is φ = 3409260192.

The previous prime is 10422021437. The next prime is 10422021457. The reversal of 10422021438 is 83412022401.

10422021438 is a `hidden beast` number, since 1 + 0 + 4 + 220 + 2 + 1 + 438 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10422021437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 705108 + ... + 719736.

It is an arithmetic number, because the mean of its divisors is an integer number (368676000).

Almost surely, 2^10422021438 is an apocalyptic number.

10422021438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10422021438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11797632000).

10422021438 is an abundant number, since it is smaller than the sum of its proper divisors (13173242562).

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

10422021438 is a wasteful number, since it uses less digits than its factorization.

10422021438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14886 (or 14880 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 10422021438 its reverse (83412022401), we get a palindrome (93834043839).

The spelling of 10422021438 in words is "ten billion, four hundred twenty-two million, twenty-one thousand, four hundred thirty-eight".