420524003251220 has 96 divisors (see below), whose sum is σ = 1017150300633600. Its totient is φ = 144431840361600.

The previous prime is 420524003251213. The next prime is 420524003251223. The reversal of 420524003251220 is 22152300425024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420524003251223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150585950 + ... + 153353109.

It is an arithmetic number, because the mean of its divisors is an integer number (10595315631600).

Almost surely, 2^{420524003251220} is an apocalyptic number.

It is an amenable number.

420524003251220 is an abundant number, since it is smaller than the sum of its proper divisors (596626297382380).

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

420524003251220 is a wasteful number, since it uses less digits than its factorization.

420524003251220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303939429 (or 303939427 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 420524003251220 its reverse (22152300425024), we get a palindrome (442676303676244).

The spelling of 420524003251220 in words is "four hundred twenty trillion, five hundred twenty-four billion, three million, two hundred fifty-one thousand, two hundred twenty".