612750240 has 72 divisors (see below), whose sum is σ = 2091015108. Its totient is φ = 163399680.

The previous prime is 612750211. The next prime is 612750263. The reversal of 612750240 is 42057216.

612750240 is a `hidden beast` number, since 612 + 7 + 5 + 0 + 2 + 40 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 606932496 + 5817744 = 24636^2 + 2412^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211321 + ... + 214200.

Almost surely, 2^612750240 is an apocalyptic number.

612750240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

612750240 is an abundant number, since it is smaller than the sum of its proper divisors (1478264868).

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

612750240 is a wasteful number, since it uses less digits than its factorization.

612750240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425542 (or 425531 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 612750240 is about 24753.7924367156. The cubic root of 612750240 is about 849.3652654632.

The spelling of 612750240 in words is "six hundred twelve million, seven hundred fifty thousand, two hundred forty".