245436421 has 8 divisors (see below), whose sum is σ = 249480000. Its totient is φ = 241409280.

The previous prime is 245436419. The next prime is 245436437. The reversal of 245436421 is 124634542.

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

It is a cyclic number.

It is not a de Polignac number, because 245436421 - 2¹ = 245436419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245436221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28030 + ... + 35728.

It is an arithmetic number, because the mean of its divisors is an integer number (31185000).

Almost surely, 2^245436421 is an apocalyptic number.

It is an amenable number.

245436421 is a deficient number, since it is larger than the sum of its proper divisors (4043579).

245436421 is an equidigital number, since it uses as much as digits as its factorization.

245436421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219.

The product of its digits is 23040, while the sum is 31.

The square root of 245436421 is about 15666.4105971981. The cubic root of 245436421 is about 626.1037953896.

The spelling of 245436421 in words is "two hundred forty-five million, four hundred thirty-six thousand, four hundred twenty-one".