400626222460 has 48 divisors (see below), whose sum is σ = 909757505664. Its totient is φ = 147614962688.

The previous prime is 400626222457. The next prime is 400626222473. The reversal of 400626222460 is 64222626004.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12519259 + ... + 12551218.

It is an arithmetic number, because the mean of its divisors is an integer number (18953281368).

Almost surely, 2^400626222460 is an apocalyptic number.

It is an amenable number.

400626222460 is an abundant number, since it is smaller than the sum of its proper divisors (509131283204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400626222460 is a wasteful number, since it uses less digits than its factorization.

400626222460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25070550 (or 25070548 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 400626222460 its reverse (64222626004), we get a palindrome (464848848464).

The spelling of 400626222460 in words is "four hundred billion, six hundred twenty-six million, two hundred twenty-two thousand, four hundred sixty".