1420775 has 12 divisors (see below), whose sum is σ = 1865952. Its totient is φ = 1069440.

The previous prime is 1420753. The next prime is 1420777. The reversal of 1420775 is 5770241.

It is not a de Polignac number, because 1420775 - 2⁸ = 1420519 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1247 + ... + 2096.

It is an arithmetic number, because the mean of its divisors is an integer number (155496).

2^1420775 is an apocalyptic number.

1420775 is a deficient number, since it is larger than the sum of its proper divisors (445177).

1420775 is a wasteful number, since it uses less digits than its factorization.

1420775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 1420775 is about 1191.9626672006. The cubic root of 1420775 is about 112.4195309331.

The spelling of 1420775 in words is "one million, four hundred twenty thousand, seven hundred seventy-five".