245610920 has 16 divisors (see below), whose sum is σ = 552624660. Its totient is φ = 98244352.

The previous prime is 245610919. The next prime is 245610943. The reversal of 245610920 is 29016542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244797316 + 813604 = 15646^2 + 902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3070097 + ... + 3070176.

Almost surely, 2^245610920 is an apocalyptic number.

245610920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245610920 is an abundant number, since it is smaller than the sum of its proper divisors (307013740).

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

245610920 is a wasteful number, since it uses less digits than its factorization.

245610920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140284 (or 6140280 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 245610920 is about 15671.9788157080. The cubic root of 245610920 is about 626.2521414848.

The spelling of 245610920 in words is "two hundred forty-five million, six hundred ten thousand, nine hundred twenty".