1234804578 has 64 divisors (see below), whose sum is σ = 2878982400. Its totient is φ = 345772800.

The previous prime is 1234804577. The next prime is 1234804591. The reversal of 1234804578 is 8754084321.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1234804577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 893448 + ... + 894828.

It is an arithmetic number, because the mean of its divisors is an integer number (44984100).

Almost surely, 2^1234804578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1234804578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439491200).

1234804578 is an abundant number, since it is smaller than the sum of its proper divisors (1644177822).

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

1234804578 is a wasteful number, since it uses less digits than its factorization.

1234804578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 1234804578 is about 35139.7862543300. The cubic root of 1234804578 is about 1072.8345311863.

Adding to 1234804578 its reverse (8754084321), we get a palindrome (9988888899).

The spelling of 1234804578 in words is "one billion, two hundred thirty-four million, eight hundred four thousand, five hundred seventy-eight".