356428249 has 2 divisors, whose sum is σ = 356428250. Its totient is φ = 356428248.

The previous prime is 356428243. The next prime is 356428291. The reversal of 356428249 is 942824653.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326452624 + 29975625 = 18068^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 356428249 - 2¹¹ = 356426201 is a prime.

It is not a weakly prime, because it can be changed into another prime (356428243) 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 as a sum of consecutive naturals, namely, 178214124 + 178214125.

It is an arithmetic number, because the mean of its divisors is an integer number (178214125).

Almost surely, 2^356428249 is an apocalyptic number.

It is an amenable number.

356428249 is a deficient number, since it is larger than the sum of its proper divisors (1).

356428249 is an equidigital number, since it uses as much as digits as its factorization.

356428249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 414720, while the sum is 43.

The square root of 356428249 is about 18879.3074290346. The cubic root of 356428249 is about 709.0181820391.

It can be divided in two parts, 3564 and 28249, that added together give a palindrome (31813).

The spelling of 356428249 in words is "three hundred fifty-six million, four hundred twenty-eight thousand, two hundred forty-nine".