245162280 has 128 divisors (see below), whose sum is σ = 812851200. Its totient is φ = 58656000.

The previous prime is 245162273. The next prime is 245162297. The reversal of 245162280 is 82261542.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103105 + ... + 105455.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2^245162280 is an apocalyptic number.

245162280 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 245162280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406425600).

245162280 is an abundant number, since it is smaller than the sum of its proper divisors (567688920).

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

245162280 is a wasteful number, since it uses less digits than its factorization.

245162280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 245162280 is about 15657.6588288288. The cubic root of 245162280 is about 625.8705989954.

It can be divided in two parts, 24516 and 2280, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 245162280 in words is "two hundred forty-five million, one hundred sixty-two thousand, two hundred eighty".