402283249 has 9 divisors (see below), whose sum is σ = 416322201. Its totient is φ = 388704660.

The previous prime is 402283243. The next prime is 402283261. The reversal of 402283249 is 942382204.

The square root of 402283249 is 20057.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 402283249 - 2⁹ = 402282737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402283243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 621444 + ... + 622090.

Almost surely, 2^402283249 is an apocalyptic number.

402283249 is the 20057-th square number.

402283249 is the 10029-th centered octagonal number.

It is an amenable number.

402283249 is a deficient number, since it is larger than the sum of its proper divisors (14038952).

402283249 is an frugal number, since it uses more digits than its factorization.

402283249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The cubic root of 402283249 is about 738.2055675708.

The spelling of 402283249 in words is "four hundred two million, two hundred eighty-three thousand, two hundred forty-nine".