616031242 has 8 divisors (see below), whose sum is σ = 927336132. Its totient is φ = 306919200.

The previous prime is 616031239. The next prime is 616031293. The reversal of 616031242 is 242130616.

It can be written as a sum of positive squares in 2 ways, for example, as 504496521 + 111534721 = 22461^2 + 10561^2 .

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

It is a super-2 number, since 2×616031242² = 758988982240125128, which contains 22 as substring.

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, 547509 + ... + 548632.

Almost surely, 2^616031242 is an apocalyptic number.

616031242 is a deficient number, since it is larger than the sum of its proper divisors (311304890).

616031242 is a wasteful number, since it uses less digits than its factorization.

616031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096424.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 616031242 is about 24819.9766720277. The cubic root of 616031242 is about 850.8785573569.

Adding to 616031242 its reverse (242130616), we get a palindrome (858161858).

The spelling of 616031242 in words is "six hundred sixteen million, thirty-one thousand, two hundred forty-two".