1270638674 has 8 divisors (see below), whose sum is σ = 1911068940. Its totient is φ = 633615696.

The previous prime is 1270638673. The next prime is 1270638697. The reversal of 1270638674 is 4768360721.

It can be written as a sum of positive squares in 2 ways, for example, as 1166700649 + 103938025 = 34157^2 + 10195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1270638674² = 3229045279728956552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270638673) 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, 850889 + ... + 852380.

Almost surely, 2^1270638674 is an apocalyptic number.

1270638674 is a deficient number, since it is larger than the sum of its proper divisors (640430266).

1270638674 is a wasteful number, since it uses less digits than its factorization.

1270638674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703644.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 1270638674 is about 35646.0190484155. The cubic root of 1270638674 is about 1083.1136353750.

The spelling of 1270638674 in words is "one billion, two hundred seventy million, six hundred thirty-eight thousand, six hundred seventy-four".