616678340 has 12 divisors (see below), whose sum is σ = 1295024556. Its totient is φ = 246671328.

The previous prime is 616678333. The next prime is 616678357. The reversal of 616678340 is 43876616.

It can be written as a sum of positive squares in 2 ways, for example, as 325225156 + 291453184 = 18034^2 + 17072^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 15416939 + ... + 15416978.

It is an arithmetic number, because the mean of its divisors is an integer number (107918713).

Almost surely, 2^616678340 is an apocalyptic number.

It is an amenable number.

616678340 is an abundant number, since it is smaller than the sum of its proper divisors (678346216).

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

616678340 is a wasteful number, since it uses less digits than its factorization.

616678340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30833926 (or 30833924 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 616678340 is about 24833.0090806571. The cubic root of 616678340 is about 851.1763826932.

It can be divided in two parts, 61667 and 8340, that added together give a palindrome (70007).

The spelling of 616678340 in words is "six hundred sixteen million, six hundred seventy-eight thousand, three hundred forty".