612247680 has 256 divisors, whose sum is σ = 2366236800. Its totient is φ = 148377600.

The previous prime is 612247663. The next prime is 612247703. The reversal of 612247680 is 86742216.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 188470 + ... + 191690.

Almost surely, 2^612247680 is an apocalyptic number.

612247680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612247680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183118400).

612247680 is an abundant number, since it is smaller than the sum of its proper divisors (1753989120).

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

612247680 is a wasteful number, since it uses less digits than its factorization.

612247680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3242 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 612247680 is about 24743.6391826263. The cubic root of 612247680 is about 849.1329936871.

Adding to 612247680 its reverse (86742216), we get a palindrome (698989896).

The spelling of 612247680 in words is "six hundred twelve million, two hundred forty-seven thousand, six hundred eighty".