612775940 has 48 divisors (see below), whose sum is σ = 1481289600. Its totient is φ = 208576512.

The previous prime is 612775921. The next prime is 612775979. The reversal of 612775940 is 49577216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3716 + ... + 35204.

It is an arithmetic number, because the mean of its divisors is an integer number (30860200).

Almost surely, 2^612775940 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 612775940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740644800).

612775940 is an abundant number, since it is smaller than the sum of its proper divisors (868513660).

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

612775940 is a wasteful number, since it uses less digits than its factorization.

612775940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31644 (or 31642 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 612775940 is about 24754.3115436483. The cubic root of 612775940 is about 849.3771400034.

The spelling of 612775940 in words is "six hundred twelve million, seven hundred seventy-five thousand, nine hundred forty".