245074830 has 128 divisors (see below), whose sum is σ = 789820416. Its totient is φ = 47001600.

The previous prime is 245074793. The next prime is 245074861. The reversal of 245074830 is 38470542.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 245074791 and 245074800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25950 + ... + 34110.

It is an arithmetic number, because the mean of its divisors is an integer number (6170472).

Almost surely, 2^245074830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245074830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394910208).

245074830 is an abundant number, since it is smaller than the sum of its proper divisors (544745586).

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

245074830 is a wasteful number, since it uses less digits than its factorization.

245074830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8202.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 245074830 is about 15654.8660166735. The cubic root of 245074830 is about 625.7961736081.

The spelling of 245074830 in words is "two hundred forty-five million, seventy-four thousand, eight hundred thirty".