249629385 has 32 divisors (see below), whose sum is σ = 408902400. Its totient is φ = 130003200.

The previous prime is 249629339. The next prime is 249629399. The reversal of 249629385 is 583926942.

It is a happy number.

It is not a de Polignac number, because 249629385 - 2⁶ = 249629321 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135420 + ... + 137250.

It is an arithmetic number, because the mean of its divisors is an integer number (12778200).

Almost surely, 2^249629385 is an apocalyptic number.

It is an amenable number.

249629385 is a deficient number, since it is larger than the sum of its proper divisors (159273015).

249629385 is a wasteful number, since it uses less digits than its factorization.

249629385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its digits is 933120, while the sum is 48.

The square root of 249629385 is about 15799.6640787075. The cubic root of 249629385 is about 629.6490738989.

The spelling of 249629385 in words is "two hundred forty-nine million, six hundred twenty-nine thousand, three hundred eighty-five".