245407898 has 8 divisors (see below), whose sum is σ = 368345460. Its totient is φ = 122626080.

The previous prime is 245407867. The next prime is 245407927. The reversal of 245407898 is 898704542.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 221622769 + 23785129 = 14887^2 + 4877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34913 + ... + 41348.

Almost surely, 2^245407898 is an apocalyptic number.

245407898 is a deficient number, since it is larger than the sum of its proper divisors (122937562).

245407898 is a wasteful number, since it uses less digits than its factorization.

245407898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77872.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 245407898 is about 15665.5002473588. The cubic root of 245407898 is about 626.0795405672.

The spelling of 245407898 in words is "two hundred forty-five million, four hundred seven thousand, eight hundred ninety-eight".