612738436 has 24 divisors (see below), whose sum is σ = 1130443776. Its totient is φ = 290175360.

The previous prime is 612738409. The next prime is 612738479. The reversal of 612738436 is 634837216.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46741 + ... + 58396.

It is an arithmetic number, because the mean of its divisors is an integer number (47101824).

Almost surely, 2^612738436 is an apocalyptic number.

It is an amenable number.

612738436 is a deficient number, since it is larger than the sum of its proper divisors (517705340).

612738436 is a wasteful number, since it uses less digits than its factorization.

612738436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105219 (or 105217 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 612738436 is about 24753.5540074552. The cubic root of 612738436 is about 849.3598113802.

The spelling of 612738436 in words is "six hundred twelve million, seven hundred thirty-eight thousand, four hundred thirty-six".