420402142300 has 72 divisors (see below), whose sum is σ = 1044405244064. Its totient is φ = 143887933440.

The previous prime is 420402142283. The next prime is 420402142309. The reversal of 420402142300 is 3241204024.

It is a happy number.

It is a super-2 number, since 2×420402142300² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420402142309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116529 + ... + 924328.

Almost surely, 2^420402142300 is an apocalyptic number.

It is an amenable number.

420402142300 is an abundant number, since it is smaller than the sum of its proper divisors (624003101764).

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

420402142300 is a wasteful number, since it uses less digits than its factorization.

420402142300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041455 (or 1041448 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 420402142300 its reverse (3241204024), we get a palindrome (423643346324).

The spelling of 420402142300 in words is "four hundred twenty billion, four hundred two million, one hundred forty-two thousand, three hundred".