245029869 has 24 divisors (see below), whose sum is σ = 406432832. Its totient is φ = 139345920.

The previous prime is 245029853. The next prime is 245029907. The reversal of 245029869 is 968920542.

It is not a de Polignac number, because 245029869 - 2⁴ = 245029853 is a prime.

It is a super-2 number, since 2×245029869² = 120079273404314322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245029669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4077 + ... + 22509.

Almost surely, 2^245029869 is an apocalyptic number.

It is an amenable number.

245029869 is a deficient number, since it is larger than the sum of its proper divisors (161402963).

245029869 is a wasteful number, since it uses less digits than its factorization.

245029869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18657 (or 18654 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 245029869 is about 15653.4299436258. The cubic root of 245029869 is about 625.7579021102.

The spelling of 245029869 in words is "two hundred forty-five million, twenty-nine thousand, eight hundred sixty-nine".