427236249 has 16 divisors (see below), whose sum is σ = 624697344. Its totient is φ = 257571600.

The previous prime is 427236241. The next prime is 427236259. The reversal of 427236249 is 942632724.

It is a happy number.

It is not a de Polignac number, because 427236249 - 2³ = 427236241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427236241) 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 15 ways as a sum of consecutive naturals, for example, 27589 + ... + 40194.

It is an arithmetic number, because the mean of its divisors is an integer number (39043584).

Almost surely, 2^427236249 is an apocalyptic number.

It is an amenable number.

427236249 is a deficient number, since it is larger than the sum of its proper divisors (197461095).

427236249 is a wasteful number, since it uses less digits than its factorization.

427236249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67988.

The product of its digits is 145152, while the sum is 39.

The square root of 427236249 is about 20669.6939745125. The cubic root of 427236249 is about 753.1636725813.

The spelling of 427236249 in words is "four hundred twenty-seven million, two hundred thirty-six thousand, two hundred forty-nine".