612554880 has 384 divisors, whose sum is σ = 2411182080. Its totient is φ = 131432448.

The previous prime is 612554779. The next prime is 612554881. The reversal of 612554880 is 88455216.

It is a tau number, because it is divible by the number of its divisors (384).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612554881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1599169 + ... + 1599551.

It is an arithmetic number, because the mean of its divisors is an integer number (6279120).

Almost surely, 2^612554880 is an apocalyptic number.

612554880 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 612554880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205591040).

612554880 is an abundant number, since it is smaller than the sum of its proper divisors (1798627200).

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

612554880 is a wasteful number, since it uses less digits than its factorization.

612554880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 612554880 is about 24749.8460601273. The cubic root of 612554880 is about 849.2749896189.

The spelling of 612554880 in words is "six hundred twelve million, five hundred fifty-four thousand, eight hundred eighty".