1642201 has 8 divisors (see below), whose sum is σ = 1800864. Its totient is φ = 1485120.

The previous prime is 1642187. The next prime is 1642211. The reversal of 1642201 is 1022461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1642201 - 2¹⁷ = 1511129 is a prime.

It is a Duffinian number.

1642201 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1642211) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3486 + ... + 3928.

It is an arithmetic number, because the mean of its divisors is an integer number (225108).

2^1642201 is an apocalyptic number.

1642201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1642201 is a deficient number, since it is larger than the sum of its proper divisors (158663).

1642201 is a wasteful number, since it uses less digits than its factorization.

1642201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1642201 is about 1281.4839054783. The cubic root of 1642201 is about 117.9801029365.

Adding to 1642201 its reverse (1022461), we get a palindrome (2664662).

The spelling of 1642201 in words is "one million, six hundred forty-two thousand, two hundred one".