40240420004 has 12 divisors (see below), whose sum is σ = 70422716700. Its totient is φ = 20119643808.

The previous prime is 40240419991. The next prime is 40240420013. The reversal of 40240420004 is 40002404204.

It can be written as a sum of positive squares in 2 ways, for example, as 7624782400 + 32615637604 = 87320^2 + 180598^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45962 + ... + 287390.

It is an arithmetic number, because the mean of its divisors is an integer number (5868559725).

Almost surely, 2^40240420004 is an apocalyptic number.

It is an amenable number.

40240420004 is a deficient number, since it is larger than the sum of its proper divisors (30182296696).

40240420004 is a wasteful number, since it uses less digits than its factorization.

40240420004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283102 (or 283100 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40240420004 its reverse (40002404204), we get a palindrome (80242824208).

The spelling of 40240420004 in words is "forty billion, two hundred forty million, four hundred twenty thousand, four".