270221400 has 192 divisors, whose sum is σ = 939523200. Its totient is φ = 71383680.

The previous prime is 270221387. The next prime is 270221407. The reversal of 270221400 is 4122072.

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 (270221407) 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, 880047 + ... + 880353.

It is an arithmetic number, because the mean of its divisors is an integer number (4893350).

Almost surely, 2^270221400 is an apocalyptic number.

270221400 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 270221400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469761600).

270221400 is an abundant number, since it is smaller than the sum of its proper divisors (669301800).

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

270221400 is a wasteful number, since it uses less digits than its factorization.

270221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 270221400 is about 16438.4123320958. The cubic root of 270221400 is about 646.5070223881.

Adding to 270221400 its reverse (4122072), we get a palindrome (274343472).

The spelling of 270221400 in words is "two hundred seventy million, two hundred twenty-one thousand, four hundred".