222738647040 has 1440 divisors, whose sum is σ = 992353602240. Its totient is φ = 46788378624.

The previous prime is 222738647017. The next prime is 222738647051. The reversal of 222738647040 is 40746837222.

222738647040 is a `hidden beast` number, since 2 + 227 + 386 + 4 + 7 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×222738647040² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 981227407 + ... + 981227633.

It is an arithmetic number, because the mean of its divisors is an integer number (689134446).

Almost surely, 2^222738647040 is an apocalyptic number.

222738647040 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 222738647040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496176801120).

222738647040 is an abundant number, since it is smaller than the sum of its proper divisors (769614955200).

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

222738647040 is a wasteful number, since it uses less digits than its factorization.

222738647040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 257 counting only the distinct ones).

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

The spelling of 222738647040 in words is "two hundred twenty-two billion, seven hundred thirty-eight million, six hundred forty-seven thousand, forty".