1204421340 has 48 divisors (see below), whose sum is σ = 3374007840. Its totient is φ = 321024000.

The previous prime is 1204421327. The next prime is 1204421341. The reversal of 1204421340 is 431244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204421341) 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, 176716 + ... + 183404.

It is an arithmetic number, because the mean of its divisors is an integer number (70291830).

Almost surely, 2^1204421340 is an apocalyptic number.

1204421340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204421340 is an abundant number, since it is smaller than the sum of its proper divisors (2169586500).

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

1204421340 is a wasteful number, since it uses less digits than its factorization.

1204421340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702 (or 9700 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1204421340 is about 34704.7740231802. The cubic root of 1204421340 is about 1063.9620737136.

Adding to 1204421340 its reverse (431244021), we get a palindrome (1635665361).

The spelling of 1204421340 in words is "one billion, two hundred four million, four hundred twenty-one thousand, three hundred forty".