1642284 has 90 divisors (see below), whose sum is σ = 5097820. Its totient is φ = 444528.

The previous prime is 1642283. The next prime is 1642297. The reversal of 1642284 is 4822461.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (1642283) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 86427 + ... + 86445.

2^1642284 is an apocalyptic number.

1642284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2548910).

1642284 is an abundant number, since it is smaller than the sum of its proper divisors (3455536).

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

1642284 is a wasteful number, since it uses less digits than its factorization.

1642284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 31 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1642284 is about 1281.5162894010. The cubic root of 1642284 is about 117.9820905501.

The spelling of 1642284 in words is "one million, six hundred forty-two thousand, two hundred eighty-four".