612204544 has 128 divisors (see below), whose sum is σ = 1491052320. Its totient is φ = 245366784.

The previous prime is 612204533. The next prime is 612204557. The reversal of 612204544 is 445402216.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3899314 + ... + 3899470.

Almost surely, 2^612204544 is an apocalyptic number.

612204544 is a gapful number since it is divisible by the number (64) 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 612204544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745526160).

612204544 is an abundant number, since it is smaller than the sum of its proper divisors (878847776).

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

612204544 is an equidigital number, since it uses as much as digits as its factorization.

612204544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 612204544 is about 24742.7675089106. The cubic root of 612204544 is about 849.1130512890.

The spelling of 612204544 in words is "six hundred twelve million, two hundred four thousand, five hundred forty-four".