245052730 has 16 divisors (see below), whose sum is σ = 475025544. Its totient is φ = 90480960.

The previous prime is 245052727. The next prime is 245052757. The reversal of 245052730 is 37250542.

It can be written as a sum of positive squares in 4 ways, for example, as 173633329 + 71419401 = 13177^2 + 8451^2 .

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, 942381 + ... + 942640.

Almost surely, 2^245052730 is an apocalyptic number.

245052730 is a deficient number, since it is larger than the sum of its proper divisors (229972814).

245052730 is a wasteful number, since it uses less digits than its factorization.

245052730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885041.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 245052730 is about 15654.1601499410. The cubic root of 245052730 is about 625.7773623316. Note that the first 3 decimals are identical.

The spelling of 245052730 in words is "two hundred forty-five million, fifty-two thousand, seven hundred thirty".