40400402422004 has 6 divisors (see below), whose sum is σ = 70700704238514. Its totient is φ = 20200201211000.

The previous prime is 40400402421991. The next prime is 40400402422007. The reversal of 40400402422004 is 40022420400404.

It can be written as a sum of positive squares in only one way, i.e., 38046049749904 + 2354352672100 = 6168148^2 + 1534390^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400402422007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050050302747 + ... + 5050050302754.

It is an arithmetic number, because the mean of its divisors is an integer number (11783450706419).

Almost surely, 2^{40400402422004} is an apocalyptic number.

It is an amenable number.

40400402422004 is a deficient number, since it is larger than the sum of its proper divisors (30300301816510).

40400402422004 is a wasteful number, since it uses less digits than its factorization.

40400402422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100100605505 (or 10100100605503 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40400402422004 its reverse (40022420400404), we get a palindrome (80422822822408).

The spelling of 40400402422004 in words is "forty trillion, four hundred billion, four hundred two million, four hundred twenty-two thousand, four".