1642338 has 24 divisors (see below), whose sum is σ = 3714048. Its totient is φ = 523512.

The previous prime is 1642327. The next prime is 1642339. The reversal of 1642338 is 8332461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1642339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1570 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (154752).

2^1642338 is an apocalyptic number.

1642338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1642338 is an abundant number, since it is smaller than the sum of its proper divisors (2071710).

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

1642338 is a wasteful number, since it uses less digits than its factorization.

1642338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998 (or 3995 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1642338 is about 1281.5373580197. The cubic root of 1642338 is about 117.9833836604.

Adding to 1642338 its reverse (8332461), we get a palindrome (9974799).

It can be divided in two parts, 16423 and 38, that added together give a palindrome (16461).

The spelling of 1642338 in words is "one million, six hundred forty-two thousand, three hundred thirty-eight".