1201204004 has 144 divisors (see below), whose sum is σ = 2904201216. Its totient is φ = 421948800.

The previous prime is 1201203989. The next prime is 1201204033. The reversal of 1201204004 is 4004021021.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a self number, because there is not a number n which added to its sum of digits gives 1201204004.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2446199 + ... + 2446689.

It is an arithmetic number, because the mean of its divisors is an integer number (20168064).

Almost surely, 2^1201204004 is an apocalyptic number.

1201204004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201204004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452100608).

1201204004 is an abundant number, since it is smaller than the sum of its proper divisors (1702997212).

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

1201204004 is a wasteful number, since it uses less digits than its factorization.

1201204004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1201204004 is about 34658.3900953290. The cubic root of 1201204004 is about 1063.0138518219.

Adding to 1201204004 its reverse (4004021021), we get a palindrome (5205225025).

The spelling of 1201204004 in words is "one billion, two hundred one million, two hundred four thousand, four".