612413378 has 8 divisors (see below), whose sum is σ = 918851340. Its totient is φ = 306129600.

The previous prime is 612413371. The next prime is 612413429. The reversal of 612413378 is 873314216.

It can be written as a sum of positive squares in 2 ways, for example, as 611919169 + 494209 = 24737^2 + 703^2 .

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

It is not an unprimeable number, because it can be changed into a prime (612413371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28043 + ... + 44846.

Almost surely, 2^612413378 is an apocalyptic number.

612413378 is a deficient number, since it is larger than the sum of its proper divisors (306437962).

612413378 is a wasteful number, since it uses less digits than its factorization.

612413378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77092.

The product of its digits is 24192, while the sum is 35.

The square root of 612413378 is about 24746.9872509766. The cubic root of 612413378 is about 849.2095895662.

The spelling of 612413378 in words is "six hundred twelve million, four hundred thirteen thousand, three hundred seventy-eight".