1342264021 has 4 divisors (see below), whose sum is σ = 1534016032. Its totient is φ = 1150512012.

The previous prime is 1342264013. The next prime is 1342264037. The reversal of 1342264021 is 1204622431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1342264021 - 2³ = 1342264013 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 (1342264081) 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, 95875995 + ... + 95876008.

It is an arithmetic number, because the mean of its divisors is an integer number (383504008).

Almost surely, 2^1342264021 is an apocalyptic number.

It is an amenable number.

1342264021 is a deficient number, since it is larger than the sum of its proper divisors (191752011).

1342264021 is an equidigital number, since it uses as much as digits as its factorization.

1342264021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191752010.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1342264021 is about 36636.9215546285. The cubic root of 1342264021 is about 1103.0943235280.

Adding to 1342264021 its reverse (1204622431), we get a palindrome (2546886452).

The spelling of 1342264021 in words is "one billion, three hundred forty-two million, two hundred sixty-four thousand, twenty-one".