245718420 has 48 divisors (see below), whose sum is σ = 691080768. Its totient is φ = 65232640.

The previous prime is 245718419. The next prime is 245718427. The reversal of 245718420 is 24817542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245718427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4600 + ... + 22640.

It is an arithmetic number, because the mean of its divisors is an integer number (14397516).

Almost surely, 2^245718420 is an apocalyptic number.

245718420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245718420 is an abundant number, since it is smaller than the sum of its proper divisors (445362348).

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

245718420 is a wasteful number, since it uses less digits than its factorization.

245718420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18280 (or 18278 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 245718420 is about 15675.4081286581. The cubic root of 245718420 is about 626.3434950311.

The spelling of 245718420 in words is "two hundred forty-five million, seven hundred eighteen thousand, four hundred twenty".