612105740 has 24 divisors (see below), whose sum is σ = 1361035872. Its totient is φ = 230439680.

The previous prime is 612105701. The next prime is 612105799. The reversal of 612105740 is 47501216.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899816 + ... + 900495.

It is an arithmetic number, because the mean of its divisors is an integer number (56709828).

Almost surely, 2^612105740 is an apocalyptic number.

It is an amenable number.

612105740 is an abundant number, since it is smaller than the sum of its proper divisors (748930132).

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

612105740 is a wasteful number, since it uses less digits than its factorization.

612105740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800337 (or 1800335 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 612105740 is about 24740.7708044838. The cubic root of 612105740 is about 849.0673692368.

Adding to 612105740 its reverse (47501216), we get a palindrome (659606956).

The spelling of 612105740 in words is "six hundred twelve million, one hundred five thousand, seven hundred forty".