420400141443 has 20 divisors (see below), whose sum is σ = 628263140560. Its totient is φ = 280151624592.

The previous prime is 420400141439. The next prime is 420400141453. The reversal of 420400141443 is 344141004024.

420400141443 is a `hidden beast` number, since 4 + 204 + 0 + 0 + 1 + 414 + 43 = 666.

It is not a de Polignac number, because 420400141443 - 2² = 420400141439 is a prime.

It is a super-2 number, since 2×420400141443² (a number of 24 digits) contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420400141423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 867463 + ... + 1262256.

It is an arithmetic number, because the mean of its divisors is an integer number (31413157028).

Almost surely, 2^420400141443 is an apocalyptic number.

420400141443 is a deficient number, since it is larger than the sum of its proper divisors (207862999117).

420400141443 is a wasteful number, since it uses less digits than its factorization.

420400141443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132168 (or 2132159 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 420400141443 its reverse (344141004024), we get a palindrome (764541145467).

The spelling of 420400141443 in words is "four hundred twenty billion, four hundred million, one hundred forty-one thousand, four hundred forty-three".