22690385280 has 256 divisors, whose sum is σ = 81163684800. Its totient is φ = 5990400000.

The previous prime is 22690385273. The next prime is 22690385287. The reversal of 22690385280 is 8258309622.

It is a happy number.

22690385280 is a `hidden beast` number, since 2 + 2 + 6 + 90 + 38 + 528 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (22690385273) and next prime (22690385287).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22690385287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1738780 + ... + 1751780.

Almost surely, 2^22690385280 is an apocalyptic number.

22690385280 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 22690385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40581842400).

22690385280 is an abundant number, since it is smaller than the sum of its proper divisors (58473299520).

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

22690385280 is a wasteful number, since it uses less digits than its factorization.

22690385280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130 (or 13112 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 22690385280 in words is "twenty-two billion, six hundred ninety million, three hundred eighty-five thousand, two hundred eighty".