400141432420 has 12 divisors (see below), whose sum is σ = 840297008124. Its totient is φ = 160056572960.

The previous prime is 400141432403. The next prime is 400141432451. The reversal of 400141432420 is 24234141004.

It can be written as a sum of positive squares in 2 ways, for example, as 51266922084 + 348874510336 = 226422^2 + 590656^2 .

It is a super-2 number, since 2×400141432420² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10003535791 + ... + 10003535830.

It is an arithmetic number, because the mean of its divisors is an integer number (70024750677).

Almost surely, 2^400141432420 is an apocalyptic number.

It is an amenable number.

400141432420 is an abundant number, since it is smaller than the sum of its proper divisors (440155575704).

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

400141432420 is a wasteful number, since it uses less digits than its factorization.

400141432420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20007071630 (or 20007071628 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 400141432420 its reverse (24234141004), we get a palindrome (424375573424).

The spelling of 400141432420 in words is "four hundred billion, one hundred forty-one million, four hundred thirty-two thousand, four hundred twenty".