612160040 has 64 divisors (see below), whose sum is σ = 1419327360. Its totient is φ = 237484800.

The previous prime is 612160033. The next prime is 612160051. The reversal of 612160040 is 40061216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 612159994 and 612160021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258542 + ... + 260898.

It is an arithmetic number, because the mean of its divisors is an integer number (22176990).

Almost surely, 2^612160040 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 612160040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709663680).

612160040 is an abundant number, since it is smaller than the sum of its proper divisors (807167320).

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

612160040 is a wasteful number, since it uses less digits than its factorization.

612160040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2558 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 612160040 is about 24741.8681590538. The cubic root of 612160040 is about 849.0924754627.

The spelling of 612160040 in words is "six hundred twelve million, one hundred sixty thousand, forty".