1642064 has 20 divisors (see below), whose sum is σ = 3369204. Its totient is φ = 772608.

The previous prime is 1642057. The next prime is 1642079. The reversal of 1642064 is 4602461.

1642064 = T₄₃₁ + T₄₃₂ + ... + T₄₄₇.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 795664 + 846400 = 892^2 + 920^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747 + ... + 3290.

2^1642064 is an apocalyptic number.

It is an amenable number.

1642064 is an abundant number, since it is smaller than the sum of its proper divisors (1727140).

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

1642064 is a wasteful number, since it uses less digits than its factorization.

1642064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062 (or 6056 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1642064 is about 1281.4304507073. The cubic root of 1642064 is about 117.9768220300.

The spelling of 1642064 in words is "one million, six hundred forty-two thousand, sixty-four".