245221460 has 48 divisors (see below), whose sum is σ = 572406912. Its totient is φ = 87484800.

The previous prime is 245221453. The next prime is 245221489. The reversal of 245221460 is 64122542.

245221460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1145 + ... + 22175.

It is an arithmetic number, because the mean of its divisors is an integer number (11925144).

Almost surely, 2^245221460 is an apocalyptic number.

245221460 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 245221460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (286203456).

245221460 is an abundant number, since it is smaller than the sum of its proper divisors (327185452).

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

245221460 is a wasteful number, since it uses less digits than its factorization.

245221460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21104 (or 21102 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 245221460 is about 15659.5485247819. The cubic root of 245221460 is about 625.9209548143.

The spelling of 245221460 in words is "two hundred forty-five million, two hundred twenty-one thousand, four hundred sixty".