61322022 has 56 divisors (see below), whose sum is σ = 139370616. Its totient is φ = 20225376.

The previous prime is 61322011. The next prime is 61322029. The reversal of 61322022 is 22022316.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 61321986 and 61322004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61322029) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 199593 + ... + 199899.

It is an arithmetic number, because the mean of its divisors is an integer number (2488761).

Almost surely, 2^61322022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61322022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69685308).

61322022 is an abundant number, since it is smaller than the sum of its proper divisors (78048594).

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

61322022 is a wasteful number, since it uses less digits than its factorization.

61322022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 61322022 is about 7830.8378862035. The cubic root of 61322022 is about 394.3412016833.

Adding to 61322022 its reverse (22022316), we get a palindrome (83344338).

The spelling of 61322022 in words is "sixty-one million, three hundred twenty-two thousand, twenty-two".