1204440231 has 16 divisors (see below), whose sum is σ = 1648604160. Its totient is φ = 781702080.

The previous prime is 1204440227. The next prime is 1204440271. The reversal of 1204440231 is 1320444021.

1204440231 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1204440231 - 2² = 1204440227 is a prime.

It is a super-2 number, since 2×1204440231² = 2901352540102666722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1204440198 and 1204440207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204440271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48696 + ... + 69138.

It is an arithmetic number, because the mean of its divisors is an integer number (103037760).

Almost surely, 2^1204440231 is an apocalyptic number.

1204440231 is a deficient number, since it is larger than the sum of its proper divisors (444163929).

1204440231 is a wasteful number, since it uses less digits than its factorization.

1204440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20966.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1204440231 is about 34705.0461892792. The cubic root of 1204440231 is about 1063.9676363302.

Adding to 1204440231 its reverse (1320444021), we get a palindrome (2524884252).

The spelling of 1204440231 in words is "one billion, two hundred four million, four hundred forty thousand, two hundred thirty-one".