22774368240 has 1280 divisors, whose sum is σ = 98393702400. Its totient is φ = 4837294080.

The previous prime is 22774368217. The next prime is 22774368263. The reversal of 22774368240 is 4286347722.

It is an interprime number because it is at equal distance from previous prime (22774368217) and next prime (22774368263).

It is a super-2 number, since 2×22774368240² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 734657025 + ... + 734657055.

It is an arithmetic number, because the mean of its divisors is an integer number (76870080).

Almost surely, 2^22774368240 is an apocalyptic number.

22774368240 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 22774368240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49196851200).

22774368240 is an abundant number, since it is smaller than the sum of its proper divisors (75619334160).

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

22774368240 is a wasteful number, since it uses less digits than its factorization.

22774368240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 45.

The spelling of 22774368240 in words is "twenty-two billion, seven hundred seventy-four million, three hundred sixty-eight thousand, two hundred forty".