616442 has 8 divisors (see below), whose sum is σ = 930036. Its totient is φ = 306432.

The previous prime is 616439. The next prime is 616459. The reversal of 616442 is 244616.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 564001 + 52441 = 751^2 + 229^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 1184.

2⁶¹⁶⁴⁴² is an apocalyptic number.

616442 is a deficient number, since it is larger than the sum of its proper divisors (313594).

616442 is a wasteful number, since it uses less digits than its factorization.

616442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792.

The product of its digits is 1152, while the sum is 23.

The square root of 616442 is about 785.1382043946. The cubic root of 616442 is about 85.1067631925.

It can be divided in two parts, 616 and 442, that multiplied together give a palindrome (272272).

The spelling of 616442 in words is "six hundred sixteen thousand, four hundred forty-two".