642462 has 8 divisors (see below), whose sum is σ = 1284936. Its totient is φ = 214152.

The previous prime is 642457. The next prime is 642487. The reversal of 642462 is 264246.

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

642462 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 642462.

It is an unprimeable number.

642462 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53533 + ... + 53544.

It is an arithmetic number, because the mean of its divisors is an integer number (160617).

2⁶⁴²⁴⁶² is an apocalyptic number.

642462 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

642462 is a wasteful number, since it uses less digits than its factorization.

642462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107082.

The product of its digits is 2304, while the sum is 24.

The square root of 642462 is about 801.5372729948. The cubic root of 642462 is about 86.2877507503.

The spelling of 642462 in words is "six hundred forty-two thousand, four hundred sixty-two".