1204020436 has 6 divisors (see below), whose sum is σ = 2107035770. Its totient is φ = 602010216.

The previous prime is 1204020413. The next prime is 1204020437. The reversal of 1204020436 is 6340204021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 620508100 + 583512336 = 24910^2 + 24156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204020437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150502551 + ... + 150502558.

Almost surely, 2^1204020436 is an apocalyptic number.

It is an amenable number.

1204020436 is a deficient number, since it is larger than the sum of its proper divisors (903015334).

1204020436 is a wasteful number, since it uses less digits than its factorization.

1204020436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301005113 (or 301005111 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1204020436 is about 34698.9976224098. The cubic root of 1204020436 is about 1063.8440103824.

Adding to 1204020436 its reverse (6340204021), we get a palindrome (7544224457).

The spelling of 1204020436 in words is "one billion, two hundred four million, twenty thousand, four hundred thirty-six".