400130522804 has 24 divisors (see below), whose sum is σ = 719362581000. Its totient is φ = 194626321920.

The previous prime is 400130522797. The next prime is 400130522807. The reversal of 400130522804 is 408225031004.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 78809332900 + 321321189904 = 280730^2 + 566852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400130522807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3438209 + ... + 3552680.

It is an arithmetic number, because the mean of its divisors is an integer number (29973440875).

Almost surely, 2^400130522804 is an apocalyptic number.

It is an amenable number.

400130522804 is a deficient number, since it is larger than the sum of its proper divisors (319232058196).

400130522804 is a wasteful number, since it uses less digits than its factorization.

400130522804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6991283 (or 6991281 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 400130522804 its reverse (408225031004), we get a palindrome (808355553808).

The spelling of 400130522804 in words is "four hundred billion, one hundred thirty million, five hundred twenty-two thousand, eight hundred four".