612406445 has 16 divisors (see below), whose sum is σ = 841152000. Its totient is φ = 419295744.

The previous prime is 612406439. The next prime is 612406447. The reversal of 612406445 is 544604216.

It is not a de Polignac number, because 612406445 - 2¹⁴ = 612390061 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612406447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10556 + ... + 36554.

It is an arithmetic number, because the mean of its divisors is an integer number (52572000).

Almost surely, 2^612406445 is an apocalyptic number.

It is an amenable number.

612406445 is a deficient number, since it is larger than the sum of its proper divisors (228745555).

612406445 is a wasteful number, since it uses less digits than its factorization.

612406445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26684.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 612406445 is about 24746.8471729229. The cubic root of 612406445 is about 849.2063849811.

The spelling of 612406445 in words is "six hundred twelve million, four hundred six thousand, four hundred forty-five".