245065620 has 24 divisors (see below), whose sum is σ = 686183904. Its totient is φ = 65350816.

The previous prime is 245065619. The next prime is 245065649. The reversal of 245065620 is 26560542.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2042154 + ... + 2042273.

It is an arithmetic number, because the mean of its divisors is an integer number (28590996).

Almost surely, 2^245065620 is an apocalyptic number.

245065620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245065620 is an abundant number, since it is smaller than the sum of its proper divisors (441118284).

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

245065620 is a wasteful number, since it uses less digits than its factorization.

245065620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084439 (or 4084437 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 245065620 is about 15654.5718561703. The cubic root of 245065620 is about 625.7883342951.

The spelling of 245065620 in words is "two hundred forty-five million, sixty-five thousand, six hundred twenty".