1319444652 has 24 divisors (see below), whose sum is σ = 3080565936. Its totient is φ = 439548928.

The previous prime is 1319444591. The next prime is 1319444653. The reversal of 1319444652 is 2564449131.

It is a super-2 number, since 2×1319444652² = 3481868379382802208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1319444652.

It is not an unprimeable number, because it can be changed into a prime (1319444653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12033 + ... + 52760.

It is an arithmetic number, because the mean of its divisors is an integer number (128356914).

Almost surely, 2^1319444652 is an apocalyptic number.

1319444652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1319444652 is an abundant number, since it is smaller than the sum of its proper divisors (1761121284).

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

1319444652 is a wasteful number, since it uses less digits than its factorization.

1319444652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66497 (or 66495 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 1319444652 is about 36324.1607198294. The cubic root of 1319444652 is about 1096.8074517181.

The spelling of 1319444652 in words is "one billion, three hundred nineteen million, four hundred forty-four thousand, six hundred fifty-two".