40040004042004 has 48 divisors (see below), whose sum is σ = 74858263300800. Its totient is φ = 18673568856576.

The previous prime is 40040004041969. The next prime is 40040004042041. The reversal of 40040004042004 is 40024040004004.

It is a super-3 number, since 3×40040004042004³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559362 + ... + 9083590.

It is an arithmetic number, because the mean of its divisors is an integer number (1559547152100).

Almost surely, 2^{40040004042004} is an apocalyptic number.

It is an amenable number.

40040004042004 is a deficient number, since it is larger than the sum of its proper divisors (34818259258796).

40040004042004 is a wasteful number, since it uses less digits than its factorization.

40040004042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524952 (or 7524950 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40040004042004 its reverse (40024040004004), we get a palindrome (80064044046008).

The spelling of 40040004042004 in words is "forty trillion, forty billion, four million, forty-two thousand, four", and thus it is an eban number.