245309806 has 16 divisors (see below), whose sum is σ = 430788960. Its totient is φ = 102568320.

The previous prime is 245309783. The next prime is 245309809. The reversal of 245309806 is 608903542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245309809) 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, 213111 + ... + 214258.

It is an arithmetic number, because the mean of its divisors is an integer number (26924310).

Almost surely, 2^245309806 is an apocalyptic number.

245309806 is a deficient number, since it is larger than the sum of its proper divisors (185479154).

245309806 is a wasteful number, since it uses less digits than its factorization.

245309806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427419.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 245309806 is about 15662.3691055983. The cubic root of 245309806 is about 625.9961126918.

The spelling of 245309806 in words is "two hundred forty-five million, three hundred nine thousand, eight hundred six".