40422004 has 24 divisors (see below), whose sum is σ = 81986688. Its totient is φ = 17078880.

The previous prime is 40421999. The next prime is 40422007. The reversal of 40422004 is 40022404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40422007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8179 + ... + 12154.

It is an arithmetic number, because the mean of its divisors is an integer number (3416112).

Almost surely, 2^40422004 is an apocalyptic number.

It is an amenable number.

40422004 is an abundant number, since it is smaller than the sum of its proper divisors (41564684).

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

40422004 is a wasteful number, since it uses less digits than its factorization.

40422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20415 (or 20413 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 40422004 is about 6357.8301329935. The cubic root of 40422004 is about 343.1936789189.

Adding to 40422004 its reverse (40022404), we get a palindrome (80444408).

The spelling of 40422004 in words is "forty million, four hundred twenty-two thousand, four".