249626394 has 16 divisors (see below), whose sum is σ = 554725440. Its totient is φ = 83208780.

The previous prime is 249626387. The next prime is 249626407. The reversal of 249626394 is 493626942.

249626394 is a `hidden beast` number, since 2 + 4 + 9 + 6 + 2 + 639 + 4 = 666.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2311302 + ... + 2311409.

It is an arithmetic number, because the mean of its divisors is an integer number (34670340).

Almost surely, 2^249626394 is an apocalyptic number.

249626394 is an abundant number, since it is smaller than the sum of its proper divisors (305099046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249626394 is a wasteful number, since it uses less digits than its factorization.

249626394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622722 (or 4622716 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 249626394 is about 15799.5694245128. The cubic root of 249626394 is about 629.6465591203.

The spelling of 249626394 in words is "two hundred forty-nine million, six hundred twenty-six thousand, three hundred ninety-four".