1421270 has 16 divisors (see below), whose sum is σ = 2572128. Its totient is φ = 565440.

The previous prime is 1421267. The next prime is 1421291. The reversal of 1421270 is 721241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2882 + ... + 3338.

It is an arithmetic number, because the mean of its divisors is an integer number (160758).

2^1421270 is an apocalyptic number.

1421270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421270 is a deficient number, since it is larger than the sum of its proper divisors (1150858).

1421270 is a wasteful number, since it uses less digits than its factorization.

1421270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1421270 is about 1192.1702898496. The cubic root of 1421270 is about 112.4325851246.

The spelling of 1421270 in words is "one million, four hundred twenty-one thousand, two hundred seventy".