245735140 has 96 divisors (see below), whose sum is σ = 624089088. Its totient is φ = 79488000.

The previous prime is 245735137. The next prime is 245735173. The reversal of 245735140 is 41537542.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 177250 + ... + 178630.

It is an arithmetic number, because the mean of its divisors is an integer number (6500928).

Almost surely, 2^245735140 is an apocalyptic number.

245735140 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 245735140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312044544).

245735140 is an abundant number, since it is smaller than the sum of its proper divisors (378353948).

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

245735140 is a wasteful number, since it uses less digits than its factorization.

245735140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 245735140 is about 15675.9414390333. The cubic root of 245735140 is about 626.3577012998.

The spelling of 245735140 in words is "two hundred forty-five million, seven hundred thirty-five thousand, one hundred forty".