400026134332 has 24 divisors (see below), whose sum is σ = 765028459440. Its totient is φ = 181510488960.

The previous prime is 400026134327. The next prime is 400026134353. The reversal of 400026134332 is 233431620004.

It is a self number, because there is not a number n which added to its sum of digits gives 400026134332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7963983 + ... + 8014054.

It is an arithmetic number, because the mean of its divisors is an integer number (31876185810).

Almost surely, 2^400026134332 is an apocalyptic number.

It is an amenable number.

400026134332 is a deficient number, since it is larger than the sum of its proper divisors (365002325108).

400026134332 is a wasteful number, since it uses less digits than its factorization.

400026134332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15978621 (or 15978619 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 400026134332 its reverse (233431620004), we get a palindrome (633457754336).

The spelling of 400026134332 in words is "four hundred billion, twenty-six million, one hundred thirty-four thousand, three hundred thirty-two".