420010233140 has 24 divisors (see below), whose sum is σ = 898663406760. Its totient is φ = 164834204288.

The previous prime is 420010233113. The next prime is 420010233187. The reversal of 420010233140 is 41332010024.

It can be written as a sum of positive squares in 4 ways, for example, as 111414428944 + 308595804196 = 333788^2 + 555514^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 198116975 + ... + 198119094.

It is an arithmetic number, because the mean of its divisors is an integer number (37444308615).

Almost surely, 2^420010233140 is an apocalyptic number.

It is an amenable number.

420010233140 is an abundant number, since it is smaller than the sum of its proper divisors (478653173620).

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

420010233140 is a wasteful number, since it uses less digits than its factorization.

420010233140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396236131 (or 396236129 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 420010233140 its reverse (41332010024), we get a palindrome (461342243164).

The spelling of 420010233140 in words is "four hundred twenty billion, ten million, two hundred thirty-three thousand, one hundred forty".