245064642 has 16 divisors (see below), whose sum is σ = 498437280. Its totient is φ = 80303552.

The previous prime is 245064637. The next prime is 245064647. The reversal of 245064642 is 246460542.

It is an interprime number because it is at equal distance from previous prime (245064637) and next prime (245064647).

It is not an unprimeable number, because it can be changed into a prime (245064647) 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, 345783 + ... + 346490.

It is an arithmetic number, because the mean of its divisors is an integer number (31152330).

Almost surely, 2^245064642 is an apocalyptic number.

245064642 is an abundant number, since it is smaller than the sum of its proper divisors (253372638).

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

245064642 is a wasteful number, since it uses less digits than its factorization.

245064642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692337.

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 245064642 is about 15654.5406192580. The cubic root of 245064642 is about 625.7875018353.

The spelling of 245064642 in words is "two hundred forty-five million, sixty-four thousand, six hundred forty-two".