612258816 has 88 divisors (see below), whose sum is σ = 1757537824. Its totient is φ = 188375040.

The previous prime is 612258799. The next prime is 612258847. The reversal of 612258816 is 618852216.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32271 + ... + 47601.

Almost surely, 2^612258816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612258816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878768912).

612258816 is an abundant number, since it is smaller than the sum of its proper divisors (1145279008).

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

612258816 is a wasteful number, since it uses less digits than its factorization.

612258816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15367 (or 15349 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 612258816 is about 24743.8642091327. The cubic root of 612258816 is about 849.1381418693.

The spelling of 612258816 in words is "six hundred twelve million, two hundred fifty-eight thousand, eight hundred sixteen".