1392075349 has 6 divisors (see below), whose sum is σ = 1619353014. Its totient is φ = 1193207400.

The previous prime is 1392075341. The next prime is 1392075359. The reversal of 1392075349 is 9435702931.

It can be written as a sum of positive squares in only one way, i.e., 1300107249 + 91968100 = 36057^2 + 9590^2 .

It is not a de Polignac number, because 1392075349 - 2³ = 1392075341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392075341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14204802 + ... + 14204899.

It is an arithmetic number, because the mean of its divisors is an integer number (269892169).

Almost surely, 2^1392075349 is an apocalyptic number.

It is an amenable number.

1392075349 is a deficient number, since it is larger than the sum of its proper divisors (227277665).

1392075349 is an equidigital number, since it uses as much as digits as its factorization.

1392075349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28409715 (or 28409708 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 1392075349 is about 37310.5259812831. The cubic root of 1392075349 is about 1116.5741803355.

The spelling of 1392075349 in words is "one billion, three hundred ninety-two million, seventy-five thousand, three hundred forty-nine".