400421202124004 has 12 divisors (see below), whose sum is σ = 717033315431664. Its totient is φ = 195554540572104.

The previous prime is 400421202124003. The next prime is 400421202124043.

It is a happy number.

400421202124004 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×400421202124004² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400421202124003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164015122282 + ... + 1164015122625.

It is an arithmetic number, because the mean of its divisors is an integer number (59752776285972).

Almost surely, 2^{400421202124004} is an apocalyptic number.

It is an amenable number.

400421202124004 is a deficient number, since it is larger than the sum of its proper divisors (316612113307660).

400421202124004 is a wasteful number, since it uses less digits than its factorization.

400421202124004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328030244954 (or 2328030244952 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

It can be divided in two parts, 40042120 and 2124004, that added together give a palindrome (42166124).

The spelling of 400421202124004 in words is "four hundred trillion, four hundred twenty-one billion, two hundred two million, one hundred twenty-four thousand, four".