1202243420 has 36 divisors (see below), whose sum is σ = 2936911320. Its totient is φ = 412197408.

The previous prime is 1202243381. The next prime is 1202243423. The reversal of 1202243420 is 243422021.

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

It is a junction number, because it is equal to n+sod(n) for n = 1202243392 and 1202243401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202243423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 612410 + ... + 614369.

It is an arithmetic number, because the mean of its divisors is an integer number (81580870).

Almost surely, 2^1202243420 is an apocalyptic number.

1202243420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202243420 is an abundant number, since it is smaller than the sum of its proper divisors (1734667900).

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

1202243420 is a wasteful number, since it uses less digits than its factorization.

1202243420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226802 (or 1226793 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1202243420 is about 34673.3820098357. The cubic root of 1202243420 is about 1063.3203762360.

Adding to 1202243420 its reverse (243422021), we get a palindrome (1445665441).

The spelling of 1202243420 in words is "one billion, two hundred two million, two hundred forty-three thousand, four hundred twenty".