1642342 has 24 divisors (see below), whose sum is σ = 2753784. Its totient is φ = 733824.

The previous prime is 1642339. The next prime is 1642363. The reversal of 1642342 is 2432461.

It is a happy number.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14478 + ... + 14590.

It is an arithmetic number, because the mean of its divisors is an integer number (114741).

2^1642342 is an apocalyptic number.

1642342 is a deficient number, since it is larger than the sum of its proper divisors (1111442).

1642342 is a wasteful number, since it uses less digits than its factorization.

1642342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 171 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 1642342 is about 1281.5389186443. The cubic root of 1642342 is about 117.9834794453.

The spelling of 1642342 in words is "one million, six hundred forty-two thousand, three hundred forty-two".