22077000 has 192 divisors, whose sum is σ = 81768960. Its totient is φ = 5328000.

The previous prime is 22076963. The next prime is 22077007. The reversal of 22077000 is 77022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98889 + ... + 99111.

It is an arithmetic number, because the mean of its divisors is an integer number (425880).

Almost surely, 2^22077000 is an apocalyptic number.

22077000 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 22077000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40884480).

22077000 is an abundant number, since it is smaller than the sum of its proper divisors (59691960).

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

22077000 is a wasteful number, since it uses less digits than its factorization.

22077000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 22077000 is about 4698.6168177454. The cubic root of 22077000 is about 280.5304570053.

The spelling of 22077000 in words is "twenty-two million, seventy-seven thousand".