612516436 has 12 divisors (see below), whose sum is σ = 1225032928. Its totient is φ = 262507032.

The previous prime is 612516431. The next prime is 612516461. The reversal of 612516436 is 634615216.

612516436 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612516431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10937766 + ... + 10937821.

Almost surely, 2^612516436 is an apocalyptic number.

It is an amenable number.

612516436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

612516436 is a wasteful number, since it uses less digits than its factorization.

612516436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21875598 (or 21875596 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 612516436 is about 24749.0693966460. The cubic root of 612516436 is about 849.2572223887.

The spelling of 612516436 in words is "six hundred twelve million, five hundred sixteen thousand, four hundred thirty-six".