245615790 has 128 divisors (see below), whose sum is σ = 719953920. Its totient is φ = 52416000.

The previous prime is 245615743. The next prime is 245615791. The reversal of 245615790 is 97516542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245615791) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 188140 + ... + 189440.

It is an arithmetic number, because the mean of its divisors is an integer number (5624640).

Almost surely, 2^245615790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245615790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359976960).

245615790 is an abundant number, since it is smaller than the sum of its proper divisors (474338130).

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

245615790 is a wasteful number, since it uses less digits than its factorization.

245615790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 245615790 is about 15672.1341877869. The cubic root of 245615790 is about 626.2562805893.

The spelling of 245615790 in words is "two hundred forty-five million, six hundred fifteen thousand, seven hundred ninety".