249223070 has 16 divisors (see below), whose sum is σ = 453228048. Its totient is φ = 98661120.

The previous prime is 249223069. The next prime is 249223087. The reversal of 249223070 is 70322942.

It is a happy number.

It is a super-3 number, since 3×249223070³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 127496 + ... + 129435.

It is an arithmetic number, because the mean of its divisors is an integer number (28326753).

Almost surely, 2^249223070 is an apocalyptic number.

249223070 is a deficient number, since it is larger than the sum of its proper divisors (204004978).

249223070 is a wasteful number, since it uses less digits than its factorization.

249223070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257035.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 249223070 is about 15786.8004991512. The cubic root of 249223070 is about 629.3072674580.

The spelling of 249223070 in words is "two hundred forty-nine million, two hundred twenty-three thousand, seventy".