249670429 has 4 divisors (see below), whose sum is σ = 249710076. Its totient is φ = 249630784.

The previous prime is 249670409. The next prime is 249670433. The reversal of 249670429 is 924076942.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77404804 + 172265625 = 8798^2 + 13125^2 .

It is a cyclic number.

It is not a de Polignac number, because 249670429 - 2⁷ = 249670301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249670409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8044 + ... + 23749.

It is an arithmetic number, because the mean of its divisors is an integer number (62427519).

Almost surely, 2^249670429 is an apocalyptic number.

It is an amenable number.

249670429 is a deficient number, since it is larger than the sum of its proper divisors (39647).

249670429 is an equidigital number, since it uses as much as digits as its factorization.

249670429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39646.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 249670429 is about 15800.9629136961. The cubic root of 249670429 is about 629.6835809212.

The spelling of 249670429 in words is "two hundred forty-nine million, six hundred seventy thousand, four hundred twenty-nine".