42622004 has 6 divisors (see below), whose sum is σ = 74588514. Its totient is φ = 21311000.

The previous prime is 42621989. The next prime is 42622007. The reversal of 42622004 is 40022624.

It can be written as a sum of positive squares in only one way, i.e., 23716900 + 18905104 = 4870^2 + 4348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42622007) by changing a digit.

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 as a sum of consecutive naturals, namely, 5327747 + ... + 5327754.

It is an arithmetic number, because the mean of its divisors is an integer number (12431419).

Almost surely, 2^42622004 is an apocalyptic number.

It is an amenable number.

42622004 is a deficient number, since it is larger than the sum of its proper divisors (31966510).

42622004 is a wasteful number, since it uses less digits than its factorization.

42622004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655505 (or 10655503 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42622004 is about 6528.5529790299. The cubic root of 42622004 is about 349.3102169729.

Adding to 42622004 its reverse (40022624), we get a palindrome (82644628).

The spelling of 42622004 in words is "forty-two million, six hundred twenty-two thousand, four".