245590469 has 4 divisors (see below), whose sum is σ = 248954796. Its totient is φ = 242226144.

The previous prime is 245590459. The next prime is 245590493. The reversal of 245590469 is 964095542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 186868900 + 58721569 = 13670^2 + 7663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245590469 is a prime.

It is a super-2 number, since 2×245590469² = 120629356927279922, 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 (245590459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682054 + ... + 1682199.

It is an arithmetic number, because the mean of its divisors is an integer number (62238699).

Almost surely, 2^245590469 is an apocalyptic number.

It is an amenable number.

245590469 is a deficient number, since it is larger than the sum of its proper divisors (3364327).

245590469 is an equidigital number, since it uses as much as digits as its factorization.

245590469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364326.

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 245590469 is about 15671.3263318712. The cubic root of 245590469 is about 626.2347591984.

The spelling of 245590469 in words is "two hundred forty-five million, five hundred ninety thousand, four hundred sixty-nine".