245449672 has 32 divisors (see below), whose sum is σ = 524777400. Its totient is φ = 106619904.

The previous prime is 245449669. The next prime is 245449679. The reversal of 245449672 is 276944542.

It can be written as a sum of positive squares in 4 ways, for example, as 182628196 + 62821476 = 13514^2 + 7926^2 .

It is not an unprimeable number, because it can be changed into a prime (245449679) 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, 67647 + ... + 71182.

Almost surely, 2^245449672 is an apocalyptic number.

It is an amenable number.

245449672 is an abundant number, since it is smaller than the sum of its proper divisors (279327728).

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

245449672 is a wasteful number, since it uses less digits than its factorization.

245449672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138865 (or 138861 counting only the distinct ones).

The product of its digits is 483840, while the sum is 43.

The square root of 245449672 is about 15666.8335026578. The cubic root of 245449672 is about 626.1150628726.

The spelling of 245449672 in words is "two hundred forty-five million, four hundred forty-nine thousand, six hundred seventy-two".