245390736 has 20 divisors (see below), whose sum is σ = 633926192. Its totient is φ = 81796896.

The previous prime is 245390731. The next prime is 245390737. The reversal of 245390736 is 637093542.

It is a super-2 number, since 2×245390736² = 120433226629243392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245390694 and 245390703.

It is not an unprimeable number, because it can be changed into a prime (245390731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556106 + ... + 2556201.

Almost surely, 2^245390736 is an apocalyptic number.

It is an amenable number.

245390736 is an abundant number, since it is smaller than the sum of its proper divisors (388535456).

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

245390736 is a wasteful number, since it uses less digits than its factorization.

245390736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112318 (or 5112312 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 245390736 is about 15664.9524735953. The cubic root of 245390736 is about 626.0649457808.

The spelling of 245390736 in words is "two hundred forty-five million, three hundred ninety thousand, seven hundred thirty-six".