420540224330 has 8 divisors (see below), whose sum is σ = 756972403812. Its totient is φ = 168216089728.

The previous prime is 420540224329. The next prime is 420540224393. The reversal of 420540224330 is 33422045024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 413689516969 + 6850707361 = 643187^2 + 82769^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 420540224293 and 420540224302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21027011207 + ... + 21027011226.

Almost surely, 2^420540224330 is an apocalyptic number.

420540224330 is a deficient number, since it is larger than the sum of its proper divisors (336432179482).

420540224330 is a wasteful number, since it uses less digits than its factorization.

420540224330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42054022440.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 420540224330 its reverse (33422045024), we get a palindrome (453962269354).

The spelling of 420540224330 in words is "four hundred twenty billion, five hundred forty million, two hundred twenty-four thousand, three hundred thirty".