245214228 has 144 divisors (see below), whose sum is σ = 717050880. Its totient is φ = 64822464.

The previous prime is 245214223. The next prime is 245214257. The reversal of 245214228 is 822412542.

245214228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245214228² = 120260035227271968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245214195 and 245214204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245214223) 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, 524851 + ... + 525317.

It is an arithmetic number, because the mean of its divisors is an integer number (4979520).

Almost surely, 2^245214228 is an apocalyptic number.

245214228 is a gapful number since it is divisible by the number (28) 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 245214228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358525440).

245214228 is an abundant number, since it is smaller than the sum of its proper divisors (471836652).

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

245214228 is a wasteful number, since it uses less digits than its factorization.

245214228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 545 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 245214228 is about 15659.3176096534. The cubic root of 245214228 is about 625.9148015943.

The spelling of 245214228 in words is "two hundred forty-five million, two hundred fourteen thousand, two hundred twenty-eight".