1420685 has 8 divisors (see below), whose sum is σ = 1948416. Its totient is φ = 974160.

The previous prime is 1420667. The next prime is 1420697. The reversal of 1420685 is 5860241.

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

It is not a de Polignac number, because 1420685 - 2⁶ = 1420621 is a prime.

It is a Duffinian number.

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, 20261 + ... + 20330.

It is an arithmetic number, because the mean of its divisors is an integer number (243552).

2^1420685 is an apocalyptic number.

It is an amenable number.

1420685 is a deficient number, since it is larger than the sum of its proper divisors (527731).

1420685 is an equidigital number, since it uses as much as digits as its factorization.

1420685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40603.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1420685 is about 1191.9249137425. The cubic root of 1420685 is about 112.4171571180.

The spelling of 1420685 in words is "one million, four hundred twenty thousand, six hundred eighty-five".