1642548 has 12 divisors (see below), whose sum is σ = 3832640. Its totient is φ = 547512.

The previous prime is 1642519. The next prime is 1642549. The reversal of 1642548 is 8452461.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68428 + ... + 68451.

2^1642548 is an apocalyptic number.

It is an amenable number.

1642548 is an abundant number, since it is smaller than the sum of its proper divisors (2190092).

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

1642548 is a wasteful number, since it uses less digits than its factorization.

1642548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136886 (or 136884 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 1642548 is about 1281.6192882444. The cubic root of 1642548 is about 117.9884121533.

Adding to 1642548 its sum of digits (30), we get a triangular number (1642578 = T₁₈₁₂).

The spelling of 1642548 in words is "one million, six hundred forty-two thousand, five hundred forty-eight".