245209396 has 6 divisors (see below), whose sum is σ = 429116450. Its totient is φ = 122604696.

The previous prime is 245209381. The next prime is 245209423. The reversal of 245209396 is 693902542.

It can be written as a sum of positive squares in only one way, i.e., 217267600 + 27941796 = 14740^2 + 5286^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30651171 + ... + 30651178.

Almost surely, 2^245209396 is an apocalyptic number.

It is an amenable number.

245209396 is a deficient number, since it is larger than the sum of its proper divisors (183907054).

245209396 is a wasteful number, since it uses less digits than its factorization.

245209396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61302353 (or 61302351 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 245209396 is about 15659.1633237539. The cubic root of 245209396 is about 625.9106903046.

The spelling of 245209396 in words is "two hundred forty-five million, two hundred nine thousand, three hundred ninety-six".