249466642 has 8 divisors (see below), whose sum is σ = 387103500. Its totient is φ = 120432144.

The previous prime is 249466631. The next prime is 249466643. The reversal of 249466642 is 246664942.

It can be written as a sum of positive squares in 2 ways, for example, as 225270081 + 24196561 = 15009^2 + 4919^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (249466643) 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, 2150517 + ... + 2150632.

Almost surely, 2^249466642 is an apocalyptic number.

249466642 is a deficient number, since it is larger than the sum of its proper divisors (137636858).

249466642 is a wasteful number, since it uses less digits than its factorization.

249466642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301180.

The product of its digits is 497664, while the sum is 43.

The square root of 249466642 is about 15794.5130345953. The cubic root of 249466642 is about 629.5122133345.

The spelling of 249466642 in words is "two hundred forty-nine million, four hundred sixty-six thousand, six hundred forty-two".