1344639204 has 60 divisors (see below), whose sum is σ = 3519295164. Its totient is φ = 447685056.

The previous prime is 1344639199. The next prime is 1344639209. The reversal of 1344639204 is 4029364431.

It is a happy number.

1344639204 is a `hidden beast` number, since 1 + 3 + 446 + 3 + 9 + 204 = 666.

It is an interprime number because it is at equal distance from previous prime (1344639199) and next prime (1344639209).

It can be written as a sum of positive squares in 2 ways, for example, as 668119104 + 676520100 = 25848^2 + 26010^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1344639209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 352234 + ... + 356030.

Almost surely, 2^1344639204 is an apocalyptic number.

It is an amenable number.

1344639204 is an abundant number, since it is smaller than the sum of its proper divisors (2174655960).

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

1344639204 is a wasteful number, since it uses less digits than its factorization.

1344639204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906 (or 4895 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 1344639204 is about 36669.3223826130. The cubic root of 1344639204 is about 1103.7445947457.

It can be divided in two parts, 13446 and 39204, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 1344639204 in words is "one billion, three hundred forty-four million, six hundred thirty-nine thousand, two hundred four".