245469390 has 32 divisors (see below), whose sum is σ = 594966816. Its totient is φ = 64809600.

The previous prime is 245469383. The next prime is 245469397. The reversal of 245469390 is 93964542.

It is an interprime number because it is at equal distance from previous prime (245469383) and next prime (245469397).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245469397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37477 + ... + 43536.

It is an arithmetic number, because the mean of its divisors is an integer number (18592713).

Almost surely, 2^245469390 is an apocalyptic number.

245469390 is an abundant number, since it is smaller than the sum of its proper divisors (349497426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245469390 is a wasteful number, since it uses less digits than its factorization.

245469390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81124.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 245469390 is about 15667.4627811908. The cubic root of 245469390 is about 626.1318285719.

The spelling of 245469390 in words is "two hundred forty-five million, four hundred sixty-nine thousand, three hundred ninety".