64822020 has 96 divisors (see below), whose sum is σ = 194358528. Its totient is φ = 16084992.

The previous prime is 64822013. The next prime is 64822067. The reversal of 64822020 is 2022846.

64822020 = T₁₁₉ + T₁₂₀ + ... + T₇₃₀.

64822020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 104752 + ... + 105368.

It is an arithmetic number, because the mean of its divisors is an integer number (2024568).

Almost surely, 2^64822020 is an apocalyptic number.

64822020 is a gapful number since it is divisible by the number (60) 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 64822020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97179264).

64822020 is an abundant number, since it is smaller than the sum of its proper divisors (129536508).

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

64822020 is a wasteful number, since it uses less digits than its factorization.

64822020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 64822020 is about 8051.2123310716. The cubic root of 64822020 is about 401.7052615436.

Adding to 64822020 its reverse (2022846), we get a palindrome (66844866).

The spelling of 64822020 in words is "sixty-four million, eight hundred twenty-two thousand, twenty".