1342921793 has 4 divisors (see below), whose sum is σ = 1343645268. Its totient is φ = 1342198320.

The previous prime is 1342921787. The next prime is 1342921807. The reversal of 1342921793 is 3971292431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3971292431 = 41 ⋅96860791.

It can be written as a sum of positive squares in 2 ways, for example, as 8334769 + 1334587024 = 2887^2 + 36532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342921793 - 2¹⁰ = 1342920769 is a prime.

It is a super-2 number, since 2×1342921793² = 3606877884228669698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1342921793.

It is not an unprimeable number, because it can be changed into a prime (1342921703) 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 3 ways as a sum of consecutive naturals, for example, 358946 + ... + 362667.

It is an arithmetic number, because the mean of its divisors is an integer number (335911317).

Almost surely, 2^1342921793 is an apocalyptic number.

It is an amenable number.

1342921793 is a deficient number, since it is larger than the sum of its proper divisors (723475).

1342921793 is an equidigital number, since it uses as much as digits as its factorization.

1342921793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723474.

The product of its digits is 81648, while the sum is 41.

The square root of 1342921793 is about 36645.8973556386. The cubic root of 1342921793 is about 1103.2744833318.

The spelling of 1342921793 in words is "one billion, three hundred forty-two million, nine hundred twenty-one thousand, seven hundred ninety-three".