612240064 has 14 divisors (see below), whose sum is σ = 1214914004. Its totient is φ = 306120000.

The previous prime is 612240061. The next prime is 612240071. The reversal of 612240064 is 460042216.

It is not an unprimeable number, because it can be changed into a prime (612240061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4783062 + ... + 4783189.

Almost surely, 2^612240064 is an apocalyptic number.

612240064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

612240064 is a deficient number, since it is larger than the sum of its proper divisors (602673940).

612240064 is an equidigital number, since it uses as much as digits as its factorization.

612240064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566263 (or 9566253 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 612240064 is about 24743.4852840096. The cubic root of 612240064 is about 849.1294727680.

The spelling of 612240064 in words is "six hundred twelve million, two hundred forty thousand, sixty-four".