1204723578 has 16 divisors (see below), whose sum is σ = 2514206016. Its totient is φ = 384114720.

The previous prime is 1204723577. The next prime is 1204723579. The reversal of 1204723578 is 8753274021.

It is an interprime number because it is at equal distance from previous prime (1204723577) and next prime (1204723579).

It is not an unprimeable number, because it can be changed into a prime (1204723577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4364803 + ... + 4365078.

It is an arithmetic number, because the mean of its divisors is an integer number (157137876).

Almost surely, 2^1204723578 is an apocalyptic number.

1204723578 is an abundant number, since it is smaller than the sum of its proper divisors (1309482438).

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

1204723578 is a wasteful number, since it uses less digits than its factorization.

1204723578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729909.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 1204723578 is about 34709.1281653688. The cubic root of 1204723578 is about 1064.0510633011.

Adding to 1204723578 its reverse (8753274021), we get a palindrome (9957997599).

The spelling of 1204723578 in words is "one billion, two hundred four million, seven hundred twenty-three thousand, five hundred seventy-eight".