649342 has 8 divisors (see below), whose sum is σ = 981000. Its totient is φ = 322344.

The previous prime is 649321. The next prime is 649361. The reversal of 649342 is 243946.

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

It is a self number, because there is not a number n which added to its sum of digits gives 649342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792 + ... + 1387.

It is an arithmetic number, because the mean of its divisors is an integer number (122625).

2⁶⁴⁹³⁴² is an apocalyptic number.

649342 is a deficient number, since it is larger than the sum of its proper divisors (331658).

649342 is a wasteful number, since it uses less digits than its factorization.

649342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330.

The product of its digits is 5184, while the sum is 28.

The square root of 649342 is about 805.8175972266. The cubic root of 649342 is about 86.5946706483.

The spelling of 649342 in words is "six hundred forty-nine thousand, three hundred forty-two".