245720088 has 64 divisors (see below), whose sum is σ = 692784000. Its totient is φ = 80679456.

The previous prime is 245720087. The next prime is 245720107. The reversal of 245720088 is 880027542.

It is a happy number.

245720088 is a `hidden beast` number, since 2 + 4 + 572 + 0 + 0 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245720087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5983 + ... + 22961.

It is an arithmetic number, because the mean of its divisors is an integer number (10824750).

Almost surely, 2^245720088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245720088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346392000).

245720088 is an abundant number, since it is smaller than the sum of its proper divisors (447063912).

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

245720088 is a wasteful number, since it uses less digits than its factorization.

245720088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17061 (or 17051 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 245720088 is about 15675.4613329241. The cubic root of 245720088 is about 626.3449122883.

The spelling of 245720088 in words is "two hundred forty-five million, seven hundred twenty thousand, eighty-eight".