616240442 has 4 divisors (see below), whose sum is σ = 924360666. Its totient is φ = 308120220.

The previous prime is 616240441. The next prime is 616240447. The reversal of 616240442 is 244042616.

It is a happy number.

616240442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 606686161 + 9554281 = 24631^2 + 3091^2 .

It is not an unprimeable number, because it can be changed into a prime (616240441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154060109 + ... + 154060112.

Almost surely, 2^616240442 is an apocalyptic number.

616240442 is a deficient number, since it is larger than the sum of its proper divisors (308120224).

616240442 is a wasteful number, since it uses less digits than its factorization.

616240442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308120223.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 616240442 is about 24824.1906615301. The cubic root of 616240442 is about 850.9748639705.

The spelling of 616240442 in words is "six hundred sixteen million, two hundred forty thousand, four hundred forty-two".