245231580 has 96 divisors (see below), whose sum is σ = 766579968. Its totient is φ = 58060800.

The previous prime is 245231557. The next prime is 245231599. The reversal of 245231580 is 85132542.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24060 + ... + 32700.

It is an arithmetic number, because the mean of its divisors is an integer number (7985208).

Almost surely, 2^245231580 is an apocalyptic number.

245231580 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 245231580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383289984).

245231580 is an abundant number, since it is smaller than the sum of its proper divisors (521348388).

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

245231580 is a wasteful number, since it uses less digits than its factorization.

245231580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8707 (or 8705 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 245231580 is about 15659.8716469836. The cubic root of 245231580 is about 625.9295650354.

The spelling of 245231580 in words is "two hundred forty-five million, two hundred thirty-one thousand, five hundred eighty".