1270042028 has 24 divisors (see below), whose sum is σ = 2268218400. Its totient is φ = 622097280.

The previous prime is 1270041919. The next prime is 1270042031. The reversal of 1270042028 is 8202400721.

It is a super-2 number, since 2×1270042028² = 3226013505772705568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1270041988 and 1270042006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28913 + ... + 58103.

It is an arithmetic number, because the mean of its divisors is an integer number (94509100).

Almost surely, 2^1270042028 is an apocalyptic number.

It is an amenable number.

1270042028 is a deficient number, since it is larger than the sum of its proper divisors (998176372).

1270042028 is a wasteful number, since it uses less digits than its factorization.

1270042028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29417 (or 29415 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1270042028 is about 35637.6490245920. The cubic root of 1270042028 is about 1082.9440784933.

Adding to 1270042028 its reverse (8202400721), we get a palindrome (9472442749).

The spelling of 1270042028 in words is "one billion, two hundred seventy million, forty-two thousand, twenty-eight".