1370028811 has 4 divisors (see below), whose sum is σ = 1371382272. Its totient is φ = 1368675352.

The previous prime is 1370028791. The next prime is 1370028841. The reversal of 1370028811 is 1188200731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1370028811 - 2⁷ = 1370028683 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1370028841) 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, 675211 + ... + 677236.

It is an arithmetic number, because the mean of its divisors is an integer number (342845568).

Almost surely, 2^1370028811 is an apocalyptic number.

1370028811 is a deficient number, since it is larger than the sum of its proper divisors (1353461).

1370028811 is a wasteful number, since it uses less digits than its factorization.

1370028811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353460.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1370028811 is about 37013.9002403151. The cubic root of 1370028811 is about 1110.6483269853.

The spelling of 1370028811 in words is "one billion, three hundred seventy million, twenty-eight thousand, eight hundred eleven".