1370494881 has 12 divisors (see below), whose sum is σ = 2262404352. Its totient is φ = 783139896.

The previous prime is 1370494817. The next prime is 1370494907. The reversal of 1370494881 is 1884940731.

It is a happy number.

1370494881 is a `hidden beast` number, since 13 + 70 + 494 + 8 + 81 = 666.

It is not a de Polignac number, because 1370494881 - 2⁶ = 1370494817 is a prime.

It is a super-2 number, since 2×1370494881² = 3756512437694408322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1370493881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10876881 + ... + 10877006.

It is an arithmetic number, because the mean of its divisors is an integer number (188533696).

Almost surely, 2^1370494881 is an apocalyptic number.

It is an amenable number.

1370494881 is a deficient number, since it is larger than the sum of its proper divisors (891909471).

1370494881 is a wasteful number, since it uses less digits than its factorization.

1370494881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21753900 (or 21753897 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1370494881 is about 37020.1955829517. The cubic root of 1370494881 is about 1110.7742564971.

The spelling of 1370494881 in words is "one billion, three hundred seventy million, four hundred ninety-four thousand, eight hundred eighty-one".