4021422541440 has 64 divisors (see below), whose sum is σ = 12818284356960. Its totient is φ = 1072379343872.

The previous prime is 4021422541349. The next prime is 4021422541447. The reversal of 4021422541440 is 441452241204.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (4021422541447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047243534 + ... + 1047247373.

Almost surely, 2^{4021422541440} is an apocalyptic number.

4021422541440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4021422541440 is an abundant number, since it is smaller than the sum of its proper divisors (8796861815520).

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

4021422541440 is a wasteful number, since it uses less digits than its factorization.

4021422541440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094490929 (or 2094490917 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 33.

Adding to 4021422541440 its reverse (441452241204), we get a palindrome (4462874782644).

The spelling of 4021422541440 in words is "four trillion, twenty-one billion, four hundred twenty-two million, five hundred forty-one thousand, four hundred forty".