1342220456 has 16 divisors (see below), whose sum is σ = 2603445300. Its totient is φ = 647968384.

The previous prime is 1342220419. The next prime is 1342220461. The reversal of 1342220456 is 6540222431.

It can be written as a sum of positive squares in 2 ways, for example, as 1325688100 + 16532356 = 36410^2 + 4066^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892485 + ... + 2892948.

Almost surely, 2^1342220456 is an apocalyptic number.

It is an amenable number.

1342220456 is a deficient number, since it is larger than the sum of its proper divisors (1261224844).

1342220456 is a wasteful number, since it uses less digits than its factorization.

1342220456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785468 (or 5785464 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1342220456 is about 36636.3269993049. The cubic root of 1342220456 is about 1103.0823892579.

Adding to 1342220456 its reverse (6540222431), we get a palindrome (7882442887).

The spelling of 1342220456 in words is "one billion, three hundred forty-two million, two hundred twenty thousand, four hundred fifty-six".