245507330 has 16 divisors (see below), whose sum is σ = 457152120. Its totient is φ = 94816512.

The previous prime is 245507323. The next prime is 245507333. The reversal of 245507330 is 33705542.

It can be written as a sum of positive squares in 4 ways, for example, as 132319009 + 113188321 = 11503^2 + 10639^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 245507293 and 245507302.

It is not an unprimeable number, because it can be changed into a prime (245507333) 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, 422999 + ... + 423578.

Almost surely, 2^245507330 is an apocalyptic number.

245507330 is a deficient number, since it is larger than the sum of its proper divisors (211644790).

245507330 is a wasteful number, since it uses less digits than its factorization.

245507330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846613.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 245507330 is about 15668.6735239458. The cubic root of 245507330 is about 626.1640854354.

The spelling of 245507330 in words is "two hundred forty-five million, five hundred seven thousand, three hundred thirty".