61226368 has 64 divisors (see below), whose sum is σ = 145509120. Its totient is φ = 25090560.

The previous prime is 61226359. The next prime is 61226369. The reversal of 61226368 is 86362216.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61226369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19123 + ... + 22093.

It is an arithmetic number, because the mean of its divisors is an integer number (2273580).

Almost surely, 2^61226368 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 61226368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72754560).

61226368 is an abundant number, since it is smaller than the sum of its proper divisors (84282752).

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

61226368 is a wasteful number, since it uses less digits than its factorization.

61226368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3015 (or 3003 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 61226368 is about 7824.7279824924. The cubic root of 61226368 is about 394.1360554626.

The spelling of 61226368 in words is "sixty-one million, two hundred twenty-six thousand, three hundred sixty-eight".