22053780 has 144 divisors (see below), whose sum is σ = 79881984. Its totient is φ = 4815360.

The previous prime is 22053767. The next prime is 22053781. The reversal of 22053780 is 8735022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28600 + ... + 29360.

It is an arithmetic number, because the mean of its divisors is an integer number (554736).

Almost surely, 2^22053780 is an apocalyptic number.

22053780 is a gapful number since it is divisible by the number (20) 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 22053780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39940992).

22053780 is an abundant number, since it is smaller than the sum of its proper divisors (57828204).

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

22053780 is a wasteful number, since it uses less digits than its factorization.

22053780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22053780 is about 4696.1452277373. The cubic root of 22053780 is about 280.4320710188.

The spelling of 22053780 in words is "twenty-two million, fifty-three thousand, seven hundred eighty".