4015422 has 48 divisors (see below), whose sum is σ = 9360000. Its totient is φ = 1240272.

The previous prime is 4015421. The next prime is 4015463. The reversal of 4015422 is 2245104.

4015422 = T₉₃ + T₉₄ + ... + T₂₉₁.

It is a super-2 number, since 2×4015422² = 32247227676168, which contains 22 as substring.

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 = 4015395 and 4015404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20079 + ... + 20277.

It is an arithmetic number, because the mean of its divisors is an integer number (195000).

Almost surely, 2^4015422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4015422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4680000).

4015422 is an abundant number, since it is smaller than the sum of its proper divisors (5344578).

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

4015422 is a wasteful number, since it uses less digits than its factorization.

4015422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

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

The square root of 4015422 is about 2003.8517909267. The cubic root of 4015422 is about 158.9438510652.

It can be divided in two parts, 40154 and 22, that multiplied together give a palindrome (883388).

The spelling of 4015422 in words is "four million, fifteen thousand, four hundred twenty-two".