612436436 has 6 divisors (see below), whose sum is σ = 1071763770. Its totient is φ = 306218216.

The previous prime is 612436381. The next prime is 612436463. The reversal of 612436436 is 634634216.

It can be written as a sum of positive squares in only one way, i.e., 348568900 + 263867536 = 18670^2 + 16244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 612436396 and 612436405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76554551 + ... + 76554558.

It is an arithmetic number, because the mean of its divisors is an integer number (178627295).

Almost surely, 2^612436436 is an apocalyptic number.

It is an amenable number.

612436436 is a deficient number, since it is larger than the sum of its proper divisors (459327334).

612436436 is a wasteful number, since it uses less digits than its factorization.

612436436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153109113 (or 153109111 counting only the distinct ones).

The product of its digits is 62208, while the sum is 35.

The square root of 612436436 is about 24747.4531214830. The cubic root of 612436436 is about 849.2202473069.

The spelling of 612436436 in words is "six hundred twelve million, four hundred thirty-six thousand, four hundred thirty-six".