1612185340 has 24 divisors (see below), whose sum is σ = 3563778960. Its totient is φ = 610933248.

The previous prime is 1612185317. The next prime is 1612185343. The reversal of 1612185340 is 435812161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612185343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120917 + ... + 2121676.

It is an arithmetic number, because the mean of its divisors is an integer number (148490790).

Almost surely, 2^1612185340 is an apocalyptic number.

1612185340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1612185340 is an abundant number, since it is smaller than the sum of its proper divisors (1951593620).

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

1612185340 is a wasteful number, since it uses less digits than its factorization.

1612185340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242621 (or 4242619 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1612185340 is about 40152.0278441824. The cubic root of 1612185340 is about 1172.5687686126.

The spelling of 1612185340 in words is "one billion, six hundred twelve million, one hundred eighty-five thousand, three hundred forty".