1270740 has 24 divisors (see below), whose sum is σ = 3558240. Its totient is φ = 338848.

The previous prime is 1270679. The next prime is 1270747. The reversal of 1270740 is 470721.

1270740 is nontrivially palindromic in base 14.

It is a super-2 number, since 2×1270740² = 3229560295200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10530 + ... + 10649.

It is an arithmetic number, because the mean of its divisors is an integer number (148260).

2^1270740 is an apocalyptic number.

1270740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270740 is an abundant number, since it is smaller than the sum of its proper divisors (2287500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1270740 is a wasteful number, since it uses less digits than its factorization.

1270740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21191 (or 21189 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 1270740 is about 1127.2710410545. The cubic root of 1270740 is about 108.3142425268.

The spelling of 1270740 in words is "one million, two hundred seventy thousand, seven hundred forty".