40105422 has 96 divisors (see below), whose sum is σ = 108345600. Its totient is φ = 10943856.

The previous prime is 40105411. The next prime is 40105433. The reversal of 40105422 is 22450104.

It is an interprime number because it is at equal distance from previous prime (40105411) and next prime (40105433).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40105395 and 40105404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60529 + ... + 61187.

It is an arithmetic number, because the mean of its divisors is an integer number (1128600).

Almost surely, 2^40105422 is an apocalyptic number.

40105422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40105422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54172800).

40105422 is an abundant number, since it is smaller than the sum of its proper divisors (68240178).

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

40105422 is a wasteful number, since it uses less digits than its factorization.

40105422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40105422 is about 6332.8841770555. The cubic root of 40105422 is about 342.2953742459.

Adding to 40105422 its reverse (22450104), we get a palindrome (62555526).

The spelling of 40105422 in words is "forty million, one hundred five thousand, four hundred twenty-two".