245409672 has 32 divisors (see below), whose sum is σ = 613918080. Its totient is φ = 81750720.

The previous prime is 245409631. The next prime is 245409679. The reversal of 245409672 is 276904542.

It is a super-2 number, since 2×245409672² = 120451814222295168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245409672.

It is not an unprimeable number, because it can be changed into a prime (245409679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59022 + ... + 63042.

It is an arithmetic number, because the mean of its divisors is an integer number (19184940).

Almost surely, 2^245409672 is an apocalyptic number.

It is an amenable number.

245409672 is an abundant number, since it is smaller than the sum of its proper divisors (368508408).

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

245409672 is a wasteful number, since it uses less digits than its factorization.

245409672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573 (or 6569 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 245409672 is about 15665.5568684934. The cubic root of 245409672 is about 626.0810491609.

The spelling of 245409672 in words is "two hundred forty-five million, four hundred nine thousand, six hundred seventy-two".