1342642771 has 4 divisors (see below), whose sum is σ = 1413308200. Its totient is φ = 1271977344.

The previous prime is 1342642751. The next prime is 1342642781. The reversal of 1342642771 is 1772462431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1772462431 = 41 ⋅43230791.

It is not a de Polignac number, because 1342642771 - 2⁵ = 1342642739 is a prime.

It is a super-2 number, since 2×1342642771² = 3605379221037116882, 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 1342642771.

It is not an unprimeable number, because it can be changed into a prime (1342642751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35332686 + ... + 35332723.

It is an arithmetic number, because the mean of its divisors is an integer number (353327050).

Almost surely, 2^1342642771 is an apocalyptic number.

1342642771 is a deficient number, since it is larger than the sum of its proper divisors (70665429).

1342642771 is an equidigital number, since it uses as much as digits as its factorization.

1342642771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70665428.

The product of its digits is 56448, while the sum is 37.

The square root of 1342642771 is about 36642.0901559941. The cubic root of 1342642771 is about 1103.1980680665.

The spelling of 1342642771 in words is "one billion, three hundred forty-two million, six hundred forty-two thousand, seven hundred seventy-one".