1420885 has 16 divisors (see below), whose sum is σ = 1797120. Its totient is φ = 1077120.

The previous prime is 1420883. The next prime is 1420891. The reversal of 1420885 is 5880241.

It is not a de Polignac number, because 1420885 - 2¹ = 1420883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13744 + ... + 13846.

It is an arithmetic number, because the mean of its divisors is an integer number (112320).

2^1420885 is an apocalyptic number.

It is an amenable number.

1420885 is a deficient number, since it is larger than the sum of its proper divisors (376235).

1420885 is a wasteful number, since it uses less digits than its factorization.

1420885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1420885 is about 1192.0088086923. The cubic root of 1420885 is about 112.4224321266.

The spelling of 1420885 in words is "one million, four hundred twenty thousand, eight hundred eighty-five".