400226322061040 has 80 divisors (see below), whose sum is σ = 985566109508640. Its totient is φ = 150627090432000.

The previous prime is 400226322061021. The next prime is 400226322061043. The reversal of 400226322061040 is 40160223622004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×400226322061040² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400226322060988 and 400226322061006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400226322061043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40839185 + ... + 49681904.

It is an arithmetic number, because the mean of its divisors is an integer number (12319576368858).

Almost surely, 2^{400226322061040} is an apocalyptic number.

400226322061040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

400226322061040 is an abundant number, since it is smaller than the sum of its proper divisors (585339787447600).

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

400226322061040 is a wasteful number, since it uses less digits than its factorization.

400226322061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90524370 (or 90524364 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 400226322061040 its reverse (40160223622004), we get a palindrome (440386545683044).

The spelling of 400226322061040 in words is "four hundred trillion, two hundred twenty-six billion, three hundred twenty-two million, sixty-one thousand, forty".