611881472 has 80 divisors (see below), whose sum is σ = 1329081600. Its totient is φ = 280350720.

The previous prime is 611881433. The next prime is 611881483. The reversal of 611881472 is 274188116.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 300554 + ... + 302582.

It is an arithmetic number, because the mean of its divisors is an integer number (16613520).

Almost surely, 2^611881472 is an apocalyptic number.

611881472 is a gapful number since it is divisible by the number (62) 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 611881472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664540800).

611881472 is an abundant number, since it is smaller than the sum of its proper divisors (717200128).

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

611881472 is a wasteful number, since it uses less digits than its factorization.

611881472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2081 counting only the distinct ones).

The product of its digits is 21504, while the sum is 38.

The square root of 611881472 is about 24736.2380324899. The cubic root of 611881472 is about 848.9636606297.

The spelling of 611881472 in words is "six hundred eleven million, eight hundred eighty-one thousand, four hundred seventy-two".