1284620 has 12 divisors (see below), whose sum is σ = 2697744. Its totient is φ = 513840.

The previous prime is 1284617. The next prime is 1284623. The reversal of 1284620 is 264821.

It is an interprime number because it is at equal distance from previous prime (1284617) and next prime (1284623).

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1284623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32096 + ... + 32135.

It is an arithmetic number, because the mean of its divisors is an integer number (224812).

2^1284620 is an apocalyptic number.

1284620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1284620 is an abundant number, since it is smaller than the sum of its proper divisors (1413124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1284620 is a wasteful number, since it uses less digits than its factorization.

1284620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64240 (or 64238 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1284620 is about 1133.4107816674. The cubic root of 1284620 is about 108.7071791601.

The spelling of 1284620 in words is "one million, two hundred eighty-four thousand, six hundred twenty".