1392049444 has 12 divisors (see below), whose sum is σ = 2439891468. Its totient is φ = 694937600.

The previous prime is 1392049433. The next prime is 1392049487. The reversal of 1392049444 is 4449402931.

It can be written as a sum of positive squares in 2 ways, for example, as 1333710400 + 58339044 = 36520^2 + 7638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1392049397 and 1392049406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268897 + ... + 274024.

It is an arithmetic number, because the mean of its divisors is an integer number (203324289).

Almost surely, 2^1392049444 is an apocalyptic number.

It is an amenable number.

1392049444 is a deficient number, since it is larger than the sum of its proper divisors (1047842024).

1392049444 is a wasteful number, since it uses less digits than its factorization.

1392049444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543566 (or 543564 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1392049444 is about 37310.1788256234. The cubic root of 1392049444 is about 1116.5672542177.

The spelling of 1392049444 in words is "one billion, three hundred ninety-two million, forty-nine thousand, four hundred forty-four".