420512202 has 32 divisors (see below), whose sum is σ = 1019424960. Its totient is φ = 127427760.

The previous prime is 420512189. The next prime is 420512207. The reversal of 420512202 is 202215024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (420512207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353373 + ... + 354560.

It is an arithmetic number, because the mean of its divisors is an integer number (31857030).

Almost surely, 2^420512202 is an apocalyptic number.

420512202 is an abundant number, since it is smaller than the sum of its proper divisors (598912758).

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

420512202 is a wasteful number, since it uses less digits than its factorization.

420512202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707955 (or 707949 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 420512202 is about 20506.3941735255. The cubic root of 420512202 is about 749.1915448468.

Adding to 420512202 its reverse (202215024), we get a palindrome (622727226).

It can be divided in two parts, 42051 and 2202, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 420512202 in words is "four hundred twenty million, five hundred twelve thousand, two hundred two".