1342269769 has 3 divisors (see below), whose sum is σ = 1342306407. Its totient is φ = 1342233132.

The previous prime is 1342269751. The next prime is 1342269779. The reversal of 1342269769 is 9679622431.

The square root of 1342269769 is 36637.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 477204025 + 865065744 = 21845^2 + 29412^2 .

It is not a de Polignac number, because 1342269769 - 2⁵ = 1342269737 is a prime.

It is a super-2 number, since 2×1342269769² = 3603376265542626722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342269779) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18319 + ... + 54955.

It is an arithmetic number, because the mean of its divisors is an integer number (447435469).

Almost surely, 2^1342269769 is an apocalyptic number.

1342269769 is the 36637-th square number.

1342269769 is the 18319-th centered octagonal number.

It is an amenable number.

1342269769 is a deficient number, since it is larger than the sum of its proper divisors (36638).

1342269769 is an frugal number, since it uses more digits than its factorization.

1342269769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73274 (or 36637 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The cubic root of 1342269769 is about 1103.0958981256.

Multiplying 1342269769 by its sum of digits (49), we get a square (65771218681 = 256459²).

The spelling of 1342269769 in words is "one billion, three hundred forty-two million, two hundred sixty-nine thousand, seven hundred sixty-nine".