1420275 has 24 divisors (see below), whose sum is σ = 2432880. Its totient is φ = 730240.

The previous prime is 1420261. The next prime is 1420277. The reversal of 1420275 is 5720241.

It is not a de Polignac number, because 1420275 - 2⁴ = 1420259 is a prime.

1420275 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1420277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1849 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (101370).

2^1420275 is an apocalyptic number.

1420275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1420275 is a deficient number, since it is larger than the sum of its proper divisors (1012605).

1420275 is a wasteful number, since it uses less digits than its factorization.

1420275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 1420275 is about 1191.7529106321. The cubic root of 1420275 is about 112.4063418027.

The spelling of 1420275 in words is "one million, four hundred twenty thousand, two hundred seventy-five".