1642056 has 64 divisors (see below), whose sum is σ = 4670400. Its totient is φ = 476928.

The previous prime is 1642051. The next prime is 1642057. The reversal of 1642056 is 6502461.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1642051) 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, 5790 + ... + 6066.

It is an arithmetic number, because the mean of its divisors is an integer number (72975).

2^1642056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2335200).

1642056 is an abundant number, since it is smaller than the sum of its proper divisors (3028344).

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

1642056 is a wasteful number, since it uses less digits than its factorization.

1642056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1642056 is about 1281.4273291919. The cubic root of 1642056 is about 117.9766304386.

The spelling of 1642056 in words is "one million, six hundred forty-two thousand, fifty-six".