40122004 has 24 divisors (see below), whose sum is σ = 76331808. Its totient is φ = 18342240.

The previous prime is 40121999. The next prime is 40122031. The reversal of 40122004 is 40022104.

It is a Harshad number since it is a multiple of its sum of digits (13).

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 7 ways as a sum of consecutive naturals, for example, 1959 + ... + 9169.

It is an arithmetic number, because the mean of its divisors is an integer number (3180492).

Almost surely, 2^40122004 is an apocalyptic number.

It is an amenable number.

40122004 is a deficient number, since it is larger than the sum of its proper divisors (36209804).

40122004 is a wasteful number, since it uses less digits than its factorization.

40122004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335 (or 7333 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40122004 is about 6334.1932398688. The cubic root of 40122004 is about 342.3425429289.

Adding to 40122004 its reverse (40022104), we get a palindrome (80144108).

The spelling of 40122004 in words is "forty million, one hundred twenty-two thousand, four".