40004622 has 48 divisors (see below), whose sum is σ = 101748192. Its totient is φ = 11119680.

The previous prime is 40004611. The next prime is 40004651. The reversal of 40004622 is 22640004.

40004622 is a `hidden beast` number, since 40 + 0 + 0 + 4 + 622 = 666.

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 = 40004595 and 40004604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372 + ... + 8952.

It is an arithmetic number, because the mean of its divisors is an integer number (2119754).

Almost surely, 2^40004622 is an apocalyptic number.

40004622 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 40004622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50874096).

40004622 is an abundant number, since it is smaller than the sum of its proper divisors (61743570).

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

40004622 is a wasteful number, since it uses less digits than its factorization.

40004622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8633 (or 8630 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 40004622 is about 6324.9207109655. The cubic root of 40004622 is about 342.0083613427.

Adding to 40004622 its reverse (22640004), we get a palindrome (62644626).

The spelling of 40004622 in words is "forty million, four thousand, six hundred twenty-two".