61422816 has 192 divisors, whose sum is σ = 203212800. Its totient is φ = 15814656.

The previous prime is 61422799. The next prime is 61422863. The reversal of 61422816 is 61822416.

61422816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 690100 + ... + 690188.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^61422816 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 61422816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

61422816 is an abundant number, since it is smaller than the sum of its proper divisors (141789984).

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

61422816 is a wasteful number, since it uses less digits than its factorization.

61422816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 193 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 61422816 is about 7837.2709535909. The cubic root of 61422816 is about 394.5571407992.

The spelling of 61422816 in words is "sixty-one million, four hundred twenty-two thousand, eight hundred sixteen".