245424720 has 160 divisors (see below), whose sum is σ = 801591552. Its totient is φ = 61997056.

The previous prime is 245424713. The next prime is 245424731. The reversal of 245424720 is 27424542.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 954832 + ... + 955088.

Almost surely, 2^245424720 is an apocalyptic number.

245424720 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 245424720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400795776).

245424720 is an abundant number, since it is smaller than the sum of its proper divisors (556166832).

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

245424720 is a wasteful number, since it uses less digits than its factorization.

245424720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 245424720 is about 15666.0371504730. The cubic root of 245424720 is about 626.0938455529.

The spelling of 245424720 in words is "two hundred forty-five million, four hundred twenty-four thousand, seven hundred twenty".