612836128 has 24 divisors (see below), whose sum is σ = 1277494092. Its totient is φ = 288393216.

The previous prime is 612836099. The next prime is 612836137. The reversal of 612836128 is 821638216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 600642064 + 12194064 = 24508^2 + 3492^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562725 + ... + 563812.

Almost surely, 2^612836128 is an apocalyptic number.

612836128 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

612836128 is an abundant number, since it is smaller than the sum of its proper divisors (664657964).

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

612836128 is a wasteful number, since it uses less digits than its factorization.

612836128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126564 (or 1126556 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 612836128 is about 24755.5272212086. The cubic root of 612836128 is about 849.4049482306.

The spelling of 612836128 in words is "six hundred twelve million, eight hundred thirty-six thousand, one hundred twenty-eight".