40421444101020 has 96 divisors (see below), whose sum is σ = 127347447091200. Its totient is φ = 10642608055872.

The previous prime is 40421444101013. The next prime is 40421444101021. The reversal of 40421444101020 is 2010144412404.

It is a happy number.

40421444101020 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 144 + 410 + 102 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421444101021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 473720164 + ... + 473805483.

It is an arithmetic number, because the mean of its divisors is an integer number (1326535907200).

Almost surely, 2^{40421444101020} is an apocalyptic number.

It is an amenable number.

40421444101020 is an abundant number, since it is smaller than the sum of its proper divisors (86926002990180).

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

40421444101020 is a wasteful number, since it uses less digits than its factorization.

40421444101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947525744 (or 947525736 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 40421444101020 its reverse (2010144412404), we get a palindrome (42431588513424).

The spelling of 40421444101020 in words is "forty trillion, four hundred twenty-one billion, four hundred forty-four million, one hundred one thousand, twenty".