612563406 has 96 divisors (see below), whose sum is σ = 1554069888. Its totient is φ = 159526080.

The previous prime is 612563389. The next prime is 612563443. The reversal of 612563406 is 604365216.

612563406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 316261 + ... + 318191.

It is an arithmetic number, because the mean of its divisors is an integer number (16188228).

Almost surely, 2^612563406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612563406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (777034944).

612563406 is an abundant number, since it is smaller than the sum of its proper divisors (941506482).

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

612563406 is a wasteful number, since it uses less digits than its factorization.

612563406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2039 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 612563406 is about 24750.0183030235. The cubic root of 612563406 is about 849.2789298835.

The spelling of 612563406 in words is "six hundred twelve million, five hundred sixty-three thousand, four hundred six".