1204820829 has 12 divisors (see below), whose sum is σ = 1742279136. Its totient is φ = 802298952.

The previous prime is 1204820807. The next prime is 1204820843. The reversal of 1204820829 is 9280284021.

It is not a de Polignac number, because 1204820829 - 2²³ = 1196432221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1204820793 and 1204820802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204820329) 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, 67857 + ... + 83750.

It is an arithmetic number, because the mean of its divisors is an integer number (145189928).

Almost surely, 2^1204820829 is an apocalyptic number.

It is an amenable number.

1204820829 is a deficient number, since it is larger than the sum of its proper divisors (537458307).

1204820829 is a wasteful number, since it uses less digits than its factorization.

1204820829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152496 (or 152493 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1204820829 is about 34710.5290798052. The cubic root of 1204820829 is about 1064.0796942799.

The spelling of 1204820829 in words is "one billion, two hundred four million, eight hundred twenty thousand, eight hundred twenty-nine".