1240204104 has 96 divisors (see below), whose sum is σ = 3486412800. Its totient is φ = 397854720.

The previous prime is 1240204099. The next prime is 1240204123. The reversal of 1240204104 is 4014020421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429337 + ... + 432215.

It is an arithmetic number, because the mean of its divisors is an integer number (36316800).

Almost surely, 2^1240204104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240204104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1743206400).

1240204104 is an abundant number, since it is smaller than the sum of its proper divisors (2246208696).

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

1240204104 is a wasteful number, since it uses less digits than its factorization.

1240204104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1240204104 is about 35216.5316861272. The cubic root of 1240204104 is about 1074.3960130491.

Adding to 1240204104 its reverse (4014020421), we get a palindrome (5254224525).

The spelling of 1240204104 in words is "one billion, two hundred forty million, two hundred four thousand, one hundred four".