401522110400 has 84 divisors (see below), whose sum is σ = 998181247728. Its totient is φ = 158953021440.

The previous prime is 401522110393. The next prime is 401522110463. The reversal of 401522110400 is 4011225104.

It is a happy number.

It is a super-2 number, since 2×401522110400² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1138364 + ... + 1448763.

It is an arithmetic number, because the mean of its divisors is an integer number (11883110092).

Almost surely, 2^401522110400 is an apocalyptic number.

401522110400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401522110400 is an abundant number, since it is smaller than the sum of its proper divisors (596659137328).

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

401522110400 is a wasteful number, since it uses less digits than its factorization.

401522110400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587246 (or 2587231 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 401522110400 its reverse (4011225104), we get a palindrome (405533335504).

The spelling of 401522110400 in words is "four hundred one billion, five hundred twenty-two million, one hundred ten thousand, four hundred".