1204040001 has 4 divisors (see below), whose sum is σ = 1605386672. Its totient is φ = 802693332.

The previous prime is 1204039987. The next prime is 1204040039. The reversal of 1204040001 is 1000404021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1204040001 - 2¹¹ = 1204037953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204040401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200673331 + ... + 200673336.

It is an arithmetic number, because the mean of its divisors is an integer number (401346668).

Almost surely, 2^1204040001 is an apocalyptic number.

It is an amenable number.

1204040001 is a deficient number, since it is larger than the sum of its proper divisors (401346671).

1204040001 is an equidigital number, since it uses as much as digits as its factorization.

1204040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401346670.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1204040001 is about 34699.2795458350. The cubic root of 1204040001 is about 1063.8497727418.

Adding to 1204040001 its reverse (1000404021), we get a palindrome (2204444022).

The spelling of 1204040001 in words is "one billion, two hundred four million, forty thousand, one".