611621248 has 128 divisors (see below), whose sum is σ = 1506988800. Its totient is φ = 241367040.

The previous prime is 611621237. The next prime is 611621251. The reversal of 611621248 is 842126116.

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

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 15 ways as a sum of consecutive naturals, for example, 629403 + ... + 630373.

It is an arithmetic number, because the mean of its divisors is an integer number (11773350).

Almost surely, 2^611621248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611621248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753494400).

611621248 is an abundant number, since it is smaller than the sum of its proper divisors (895367552).

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

611621248 is a wasteful number, since it uses less digits than its factorization.

611621248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1036 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 611621248 is about 24730.9774978669. The cubic root of 611621248 is about 848.8432930666.

The spelling of 611621248 in words is "six hundred eleven million, six hundred twenty-one thousand, two hundred forty-eight".