245271790 has 8 divisors (see below), whose sum is σ = 441489240. Its totient is φ = 98108712.

The previous prime is 245271787. The next prime is 245271797. The reversal of 245271790 is 97172542.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245271797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12263580 + ... + 12263599.

It is an arithmetic number, because the mean of its divisors is an integer number (55186155).

Almost surely, 2^245271790 is an apocalyptic number.

245271790 is a deficient number, since it is larger than the sum of its proper divisors (196217450).

245271790 is a wasteful number, since it uses less digits than its factorization.

245271790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24527186.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 245271790 is about 15661.1554490721. The cubic root of 245271790 is about 625.9637738600.

The spelling of 245271790 in words is "two hundred forty-five million, two hundred seventy-one thousand, seven hundred ninety".